{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "441d5bef641a0569",
  "data": {
    "overlays": {
      "L02B02": {
        "bg_id": "L02B02",
        "fp_id": "fp_l02_shed_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5
        ],
        "ignore_numbered_elements": [
          6,
          7
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared interior floor",
            "category": "area",
            "position_hint": "central and rear portion of the one-room shed",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "doorway threshold zone",
            "category": "area",
            "position_hint": "narrow strip immediately inside the south-wall doorway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "single plank doorway",
            "category": "opening",
            "position_hint": "south wall, slightly east of center",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "fixed timber wall brace",
            "category": "prop",
            "position_hint": "one contiguous brace run at the center of the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 5,
            "label": "huddled civilian group",
            "category": "prop",
            "position_hint": "single tightly clustered group in the rear half of the shared interior floor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 6,
            "label": "door flung open",
            "category": "opening",
            "position_hint": "at the single plank doorway on the south wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "officer pulled through doorway",
            "category": "prop",
            "position_hint": "single figure crossing the south threshold toward the exterior",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L02B01": {
        "bg_id": "L02B01",
        "fp_id": "fp_l02_shed_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          6,
          7
        ],
        "ignore_numbered_elements": [
          5
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared interior floor",
            "category": "area",
            "position_hint": "central and rear portion of the one-room shed",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "doorway threshold zone",
            "category": "area",
            "position_hint": "narrow strip immediately inside the south-wall doorway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "single plank doorway",
            "category": "opening",
            "position_hint": "south wall, slightly east of center",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "fixed timber wall brace",
            "category": "prop",
            "position_hint": "one contiguous brace run at the center of the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 6,
            "label": "door flung open",
            "category": "opening",
            "position_hint": "at the single plank doorway on the south wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "officer pulled through doorway",
            "category": "prop",
            "position_hint": "single figure crossing the south threshold toward the exterior",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 5,
            "label": "huddled civilian group",
            "category": "prop",
            "position_hint": "single tightly clustered group in the rear half of the shared interior floor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L03B01": {
        "bg_id": "L03B01",
        "fp_id": "fp_l03_shed_forecourt",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "makeshift shed interior",
            "category": "area",
            "position_hint": "north-center of plan, rectangular enclosure behind the front facade",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "open forecourt",
            "category": "area",
            "position_hint": "central and southern clearing directly in front of the shed",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "reed-field edge",
            "category": "area",
            "position_hint": "single continuous exterior band around the west, south, and east sides of the clearing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "facade threshold",
            "category": "area",
            "position_hint": "narrow strip immediately outside the shed's south facade",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "front plank door",
            "category": "opening",
            "position_hint": "center of the shed's south wall, opening outward toward the forecourt",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 6,
            "label": "casualty at doorway",
            "category": "prop",
            "position_hint": "forecourt immediately south of the threshold, slightly west of the door axis",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "western casualty",
            "category": "prop",
            "position_hint": "west side of the open forecourt",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "eastern casualty",
            "category": "prop",
            "position_hint": "east side of the open forecourt",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "central wounded casualty",
            "category": "prop",
            "position_hint": "central forecourt, southeast of the doorway axis",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "fallen smoke figure",
            "category": "prop",
            "position_hint": "central forecourt between the doorway and the southern reed edge",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "antler-tipped spear",
            "category": "prop",
            "position_hint": "single diagonal position overlapping the torso location of number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "transformed local leader",
            "category": "prop",
            "position_hint": "immediately north of number 10, facing the fallen figure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "survivor at doorway",
            "category": "prop",
            "position_hint": "single figure position on the east half of the threshold beside number 5",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "feeding survivor",
            "category": "prop",
            "position_hint": "single figure position beside number 8 in the eastern forecourt",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B03": {
        "bg_id": "L06B03",
        "fp_id": "fp_l06_refrigerator_backspace",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          12
        ],
        "ignore_numbered_elements": [
          11,
          13
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "staff service aisle",
            "category": "area",
            "position_hint": "elongated north-side interior behind the refrigerated display",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "refrigerated display zone",
            "category": "area",
            "position_hint": "central continuous strip between the staff aisle and customer frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "customer-side aisle",
            "category": "area",
            "position_hint": "narrow strip immediately south of the glass refrigerator doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "staff entry threshold",
            "category": "area",
            "position_hint": "small beige threshold at the west end of the staff service aisle",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "staff access door",
            "category": "opening",
            "position_hint": "west wall beside the staff entry threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "left glass refrigerator door",
            "category": "opening",
            "position_hint": "south frontage, left door leaf",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "center glass refrigerator door",
            "category": "opening",
            "position_hint": "south frontage, center door leaf",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "right glass refrigerator door",
            "category": "opening",
            "position_hint": "south frontage, right door leaf",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "canned beverage shelving run",
            "category": "furniture",
            "position_hint": "single continuous east-west shelving run within the refrigerated display zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "discarded-food basket",
            "category": "furniture",
            "position_hint": "northwest side of the staff service aisle, clear of the access door",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "late-meal lunchbox",
            "category": "prop",
            "position_hint": "temporarily held or placed beside the discarded-food basket",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "dark red blood drop",
            "category": "prop",
            "position_hint": "single spot on the white tile near the center of the staff service aisle",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "visitor beyond glass",
            "category": "prop",
            "position_hint": "customer-side aisle directly beyond the center glass refrigerator door",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B02": {
        "bg_id": "L06B02",
        "fp_id": "fp_l06_refrigerator_backspace",
        "use_numbered_elements": [
          1,
          2,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [
          13
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "staff service aisle",
            "category": "area",
            "position_hint": "elongated north-side interior behind the refrigerated display",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "refrigerated display zone",
            "category": "area",
            "position_hint": "central continuous strip between the staff aisle and customer frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "staff entry threshold",
            "category": "area",
            "position_hint": "small beige threshold at the west end of the staff service aisle",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "staff access door",
            "category": "opening",
            "position_hint": "west wall beside the staff entry threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "left glass refrigerator door",
            "category": "opening",
            "position_hint": "south frontage, left door leaf",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "center glass refrigerator door",
            "category": "opening",
            "position_hint": "south frontage, center door leaf",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "right glass refrigerator door",
            "category": "opening",
            "position_hint": "south frontage, right door leaf",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "canned beverage shelving run",
            "category": "furniture",
            "position_hint": "single continuous east-west shelving run within the refrigerated display zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "discarded-food basket",
            "category": "furniture",
            "position_hint": "northwest side of the staff service aisle, clear of the access door",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "dark red blood drop",
            "category": "prop",
            "position_hint": "single spot on the white tile near the center of the staff service aisle",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "late-meal lunchbox",
            "category": "prop",
            "position_hint": "temporarily held or placed beside the discarded-food basket",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "visitor beyond glass",
            "category": "prop",
            "position_hint": "customer-side aisle directly beyond the center glass refrigerator door",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B01": {
        "bg_id": "L06B01",
        "fp_id": "fp_l06_refrigerator_backspace",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "staff service aisle",
            "category": "area",
            "position_hint": "elongated north-side interior behind the refrigerated display",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "refrigerated display zone",
            "category": "area",
            "position_hint": "central continuous strip between the staff aisle and customer frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "customer-side aisle",
            "category": "area",
            "position_hint": "narrow strip immediately south of the glass refrigerator doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "staff entry threshold",
            "category": "area",
            "position_hint": "small beige threshold at the west end of the staff service aisle",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "staff access door",
            "category": "opening",
            "position_hint": "west wall beside the staff entry threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "left glass refrigerator door",
            "category": "opening",
            "position_hint": "south frontage, left door leaf",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "center glass refrigerator door",
            "category": "opening",
            "position_hint": "south frontage, center door leaf",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "right glass refrigerator door",
            "category": "opening",
            "position_hint": "south frontage, right door leaf",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "canned beverage shelving run",
            "category": "furniture",
            "position_hint": "single continuous east-west shelving run within the refrigerated display zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "discarded-food basket",
            "category": "furniture",
            "position_hint": "northwest side of the staff service aisle, clear of the access door",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "dark red blood drop",
            "category": "prop",
            "position_hint": "single spot on the white tile near the center of the staff service aisle",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "late-meal lunchbox",
            "category": "prop",
            "position_hint": "temporarily held or placed beside the discarded-food basket",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "visitor beyond glass",
            "category": "prop",
            "position_hint": "customer-side aisle directly beyond the center glass refrigerator door",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L08B01": {
        "bg_id": "L08B01",
        "fp_id": "fp_l08_storefront_bench_sidewalk",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "storefront interior zone",
            "category": "area",
            "position_hint": "north side of plan behind the glazed frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "south edge of storefront, aligned with the customer entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "sidewalk zone",
            "category": "area",
            "position_hint": "central exterior strip running east to west along the storefront",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "curbside roadway zone",
            "category": "area",
            "position_hint": "south side of plan beyond the curb",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "customer entrance door",
            "category": "opening",
            "position_hint": "storefront south wall, east of center",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "west frontage window",
            "category": "opening",
            "position_hint": "storefront south wall, west of the entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "east frontage window",
            "category": "opening",
            "position_hint": "storefront south wall, east of the entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "storefront bench",
            "category": "furniture",
            "position_hint": "north half of sidewalk, west of the entrance and parallel to the frontage",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "curb edge",
            "category": "area",
            "position_hint": "continuous east-west boundary between sidewalk and roadway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "canned coffee",
            "category": "prop",
            "position_hint": "bench seating area during the nighttime conversation",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "money envelope",
            "category": "prop",
            "position_hint": "bench seating area during the later conversation",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L07B01": {
        "bg_id": "L07B01",
        "fp_id": "fp_l07_store_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          8,
          9,
          10,
          12,
          13
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared sales floor",
            "category": "area",
            "position_hint": "central customer circulation area between the aisle shelves, checkout zone, and refrigerated display",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "checkout service zone",
            "category": "area",
            "position_hint": "southeast side of the sales floor beside the entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "inside the south wall at the customer entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "customer entrance door",
            "category": "opening",
            "position_hint": "south wall near the southeast corner, opening inward toward the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "storefront glazing run",
            "category": "opening",
            "position_hint": "single contiguous window run along the south wall west of the entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "checkout counter",
            "category": "furniture",
            "position_hint": "east side of the checkout service zone, aligned north-south beside the entrance sightline",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "point-of-sale terminal",
            "category": "prop",
            "position_hint": "single compact fixture on the inner side of the checkout counter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "first aisle shelf",
            "category": "furniture",
            "position_hint": "west-central sales floor, running north-south with circulation space on both sides",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "second aisle shelf",
            "category": "furniture",
            "position_hint": "east-central sales floor, parallel to the first aisle shelf and clear of the checkout queue",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "money envelope",
            "category": "prop",
            "position_hint": "one small contiguous spot on the checkout counter near the clerk position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "smartphone with warning message",
            "category": "prop",
            "position_hint": "one small contiguous spot on the checkout counter beside the point-of-sale terminal",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L09B01": {
        "bg_id": "L09B01",
        "fp_id": "fp_police_station_parking",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "vehicle parking court",
            "category": "area",
            "position_hint": "central and southern portion of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "station building frontage",
            "category": "area",
            "position_hint": "along the north edge of the parking court",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "public entrance door",
            "category": "opening",
            "position_hint": "center-right of the station frontage",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "pedestrian forecourt",
            "category": "area",
            "position_hint": "directly south of the public entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "representative parking bay run",
            "category": "area",
            "position_hint": "west side of the vehicle parking court",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "driveway opening",
            "category": "opening",
            "position_hint": "south edge of the parking court, opening toward the street",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "ground-floor window run",
            "category": "opening",
            "position_hint": "north building frontage, left of the public entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 8,
            "label": "first pedestrian position",
            "category": "prop",
            "position_hint": "center of the pedestrian forecourt, facing southeast toward number 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "second pedestrian position",
            "category": "prop",
            "position_hint": "southeast side of the pedestrian forecourt, facing northwest toward number 8",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "thick money envelope handoff",
            "category": "prop",
            "position_hint": "single handoff point between pedestrian positions 8 and 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L14B01": {
        "bg_id": "L14B01",
        "fp_id": "fp_detective_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared work zone",
            "category": "area",
            "position_hint": "central and northern portion of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "evidence workstation zone",
            "category": "area",
            "position_hint": "north-central side of the shared office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "circulation zone",
            "category": "area",
            "position_hint": "wide aisle extending from the southwest entrance through the center",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "service storage zone",
            "category": "area",
            "position_hint": "southeast corner beside the circulation aisle",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "threshold zone",
            "category": "area",
            "position_hint": "small southwest entry area inside the corridor door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "primary workstation desk",
            "category": "furniture",
            "position_hint": "north-central office, oriented so its user faces north",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "desktop monitor",
            "category": "prop",
            "position_hint": "rear center of the primary workstation desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "workstation chair",
            "category": "furniture",
            "position_hint": "south side of the primary workstation desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "secondary detective desk",
            "category": "furniture",
            "position_hint": "west-central office beside the main circulation aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "secondary desk chair",
            "category": "furniture",
            "position_hint": "south side of the secondary detective desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "built-in file cabinets",
            "category": "furniture",
            "position_hint": "single contiguous cabinet run along the south wall in the service storage zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "corridor entrance door",
            "category": "opening",
            "position_hint": "southwest wall, opening inward into the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "north window run",
            "category": "opening",
            "position_hint": "single contiguous window run in the north wall behind the primary workstation",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "east window run",
            "category": "opening",
            "position_hint": "single contiguous window run in the east wall beside the shared work zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "CCTV evidence display",
            "category": "prop",
            "position_hint": "confined to the screen surface of the desktop monitor at number 7",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L10B02": {
        "bg_id": "L10B02",
        "fp_id": "fp_minsuk_residence",
        "use_numbered_elements": [
          1,
          3,
          5,
          6,
          7,
          8,
          10,
          12,
          13,
          17,
          20,
          21,
          22,
          23
        ],
        "ignore_numbered_elements": [
          24,
          25,
          26,
          27,
          28,
          29
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "living area",
            "category": "area",
            "position_hint": "central and west-central portion of the residence",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette",
            "category": "area",
            "position_hint": "northeast side of the living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "entry vestibule",
            "category": "area",
            "position_hint": "south-central recessed threshold below the living floor",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "interior circulation strip",
            "category": "area",
            "position_hint": "between the entry vestibule, living area, bedroom door, and bathroom door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "entrance door",
            "category": "opening",
            "position_hint": "south exterior wall of the entry vestibule",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "bedroom door",
            "category": "opening",
            "position_hint": "south or southeast wall of the bedroom, opening toward the circulation strip",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "living room window",
            "category": "opening",
            "position_hint": "west exterior wall of the living area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "kitchen sink counter",
            "category": "furniture",
            "position_hint": "north wall of the kitchenette",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "cooktop",
            "category": "furniture",
            "position_hint": "east end of the kitchen counter run",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "sofa",
            "category": "furniture",
            "position_hint": "west side of the living area, facing inward and visible from the entrance",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "low living table",
            "category": "furniture",
            "position_hint": "center of the living area in front of the sofa",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "central ceiling light",
            "category": "prop",
            "position_hint": "upper-center of the living area, offset from the low table marker",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 22,
            "label": "seated unknown woman",
            "category": "prop",
            "position_hint": "single seated position on the central section of the sofa",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "large entrance-blocking man",
            "category": "prop",
            "position_hint": "single standing position directly inside the entrance door",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 24,
            "label": "broken low table condition",
            "category": "furniture",
            "position_hint": "center of the living area at the low table location",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "shattered light debris",
            "category": "prop",
            "position_hint": "single compact floor cluster beneath the living-area ceiling light",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "broken plant pot",
            "category": "prop",
            "position_hint": "single overturned pot and soil cluster near the west living-room window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "loose debris cluster",
            "category": "prop",
            "position_hint": "single contiguous cluster along the east edge of the living area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "west bloodstain cluster",
            "category": "prop",
            "position_hint": "single contiguous floor stain near the sofa and west wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "east bloodstain cluster",
            "category": "prop",
            "position_hint": "single contiguous floor stain near the circulation strip and bathroom door",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L10B01": {
        "bg_id": "L10B01",
        "fp_id": "fp_minsuk_residence",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          8,
          9,
          10,
          12,
          13,
          17,
          20,
          21,
          24,
          25,
          26,
          27,
          28,
          29
        ],
        "ignore_numbered_elements": [
          22,
          23
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "living area",
            "category": "area",
            "position_hint": "central and west-central portion of the residence",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "bedroom",
            "category": "area",
            "position_hint": "northwest enclosed room adjoining the living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette",
            "category": "area",
            "position_hint": "northeast side of the living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "entry vestibule",
            "category": "area",
            "position_hint": "south-central recessed threshold below the living floor",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "interior circulation strip",
            "category": "area",
            "position_hint": "between the entry vestibule, living area, bedroom door, and bathroom door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "entrance door",
            "category": "opening",
            "position_hint": "south exterior wall of the entry vestibule",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "bedroom door",
            "category": "opening",
            "position_hint": "south or southeast wall of the bedroom, opening toward the circulation strip",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "west wall of the bathroom, opening toward the circulation strip",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "living room window",
            "category": "opening",
            "position_hint": "west exterior wall of the living area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "kitchen sink counter",
            "category": "furniture",
            "position_hint": "north wall of the kitchenette",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "cooktop",
            "category": "furniture",
            "position_hint": "east end of the kitchen counter run",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "sofa",
            "category": "furniture",
            "position_hint": "west side of the living area, facing inward and visible from the entrance",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "low living table",
            "category": "furniture",
            "position_hint": "center of the living area in front of the sofa",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "central ceiling light",
            "category": "prop",
            "position_hint": "upper-center of the living area, offset from the low table marker",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 24,
            "label": "broken low table condition",
            "category": "furniture",
            "position_hint": "center of the living area at the low table location",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "shattered light debris",
            "category": "prop",
            "position_hint": "single compact floor cluster beneath the living-area ceiling light",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "broken plant pot",
            "category": "prop",
            "position_hint": "single overturned pot and soil cluster near the west living-room window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "loose debris cluster",
            "category": "prop",
            "position_hint": "single contiguous cluster along the east edge of the living area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "west bloodstain cluster",
            "category": "prop",
            "position_hint": "single contiguous floor stain near the sofa and west wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "east bloodstain cluster",
            "category": "prop",
            "position_hint": "single contiguous floor stain near the circulation strip and bathroom door",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "seated unknown woman",
            "category": "prop",
            "position_hint": "single seated position on the central section of the sofa",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "large entrance-blocking man",
            "category": "prop",
            "position_hint": "single standing position directly inside the entrance door",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L13B03": {
        "bg_id": "L13B03",
        "fp_id": "fp_suv_cabin",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          7,
          8,
          9,
          10,
          11,
          13,
          14,
          15,
          16,
          18,
          19,
          20,
          21,
          23,
          25,
          27
        ],
        "ignore_numbered_elements": [
          24,
          26
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "SUV cabin envelope",
            "category": "area",
            "position_hint": "body shell perimeter, marker near the front center of the contiguous cabin outline",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "driver zone",
            "category": "area",
            "position_hint": "front-left portion of cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "front passenger zone",
            "category": "area",
            "position_hint": "front-right portion of cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "rear seating zone",
            "category": "area",
            "position_hint": "full-width middle-rear portion of cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "center service zone",
            "category": "area",
            "position_hint": "narrow longitudinal strip between the two front seats",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "driver seat",
            "category": "furniture",
            "position_hint": "front-left driver zone, facing the windshield",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "front passenger seat",
            "category": "furniture",
            "position_hint": "front-right passenger zone, facing the windshield",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rear bench seat",
            "category": "furniture",
            "position_hint": "across the rear seating zone, facing forward",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "steering wheel",
            "category": "furniture",
            "position_hint": "front of driver seat, left side of dashboard",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "center console",
            "category": "furniture",
            "position_hint": "between driver and front passenger seats",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "driver front window",
            "category": "opening",
            "position_hint": "left wall beside driver seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "passenger front window",
            "category": "opening",
            "position_hint": "right wall beside front passenger seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "left rear window",
            "category": "opening",
            "position_hint": "left wall beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "right rear window",
            "category": "opening",
            "position_hint": "right wall beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "driver door",
            "category": "opening",
            "position_hint": "front-left side opening beside driver seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "front passenger door",
            "category": "opening",
            "position_hint": "front-right side opening beside front passenger seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "left rear door",
            "category": "opening",
            "position_hint": "left side opening beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "right rear door",
            "category": "opening",
            "position_hint": "right side opening beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 23,
            "label": "bound captive lying with eyes closed",
            "category": "prop",
            "position_hint": "single contiguous pose extending across the rear bench",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "driver turned toward rear seat",
            "category": "prop",
            "position_hint": "driver seat, upper body oriented rearward",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "phone in driver hand",
            "category": "prop",
            "position_hint": "driver seat, immediately beside steering wheel",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 24,
            "label": "bound captive lying awake",
            "category": "prop",
            "position_hint": "single contiguous pose extending across the rear bench",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "freed passenger holding framed photograph",
            "category": "prop",
            "position_hint": "front passenger seat, photograph held directly in front of occupant",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L13B02": {
        "bg_id": "L13B02",
        "fp_id": "fp_suv_cabin",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          18,
          19,
          20,
          21,
          24,
          25
        ],
        "ignore_numbered_elements": [
          23,
          26,
          27
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "SUV cabin envelope",
            "category": "area",
            "position_hint": "body shell perimeter, marker near the front center of the contiguous cabin outline",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "driver zone",
            "category": "area",
            "position_hint": "front-left portion of cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "front passenger zone",
            "category": "area",
            "position_hint": "front-right portion of cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "rear seating zone",
            "category": "area",
            "position_hint": "full-width middle-rear portion of cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "center service zone",
            "category": "area",
            "position_hint": "narrow longitudinal strip between the two front seats",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "driver seat",
            "category": "furniture",
            "position_hint": "front-left driver zone, facing the windshield",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "front passenger seat",
            "category": "furniture",
            "position_hint": "front-right passenger zone, facing the windshield",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rear bench seat",
            "category": "furniture",
            "position_hint": "across the rear seating zone, facing forward",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "steering wheel",
            "category": "furniture",
            "position_hint": "front of driver seat, left side of dashboard",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "center console",
            "category": "furniture",
            "position_hint": "between driver and front passenger seats",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "front windshield",
            "category": "opening",
            "position_hint": "single wide opening across the front edge of cabin",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "driver front window",
            "category": "opening",
            "position_hint": "left wall beside driver seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "passenger front window",
            "category": "opening",
            "position_hint": "right wall beside front passenger seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "left rear window",
            "category": "opening",
            "position_hint": "left wall beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "right rear window",
            "category": "opening",
            "position_hint": "right wall beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "driver door",
            "category": "opening",
            "position_hint": "front-left side opening beside driver seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "front passenger door",
            "category": "opening",
            "position_hint": "front-right side opening beside front passenger seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "left rear door",
            "category": "opening",
            "position_hint": "left side opening beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "right rear door",
            "category": "opening",
            "position_hint": "right side opening beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 24,
            "label": "bound captive lying awake",
            "category": "prop",
            "position_hint": "single contiguous pose extending across the rear bench",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "driver turned toward rear seat",
            "category": "prop",
            "position_hint": "driver seat, upper body oriented rearward",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 23,
            "label": "bound captive lying with eyes closed",
            "category": "prop",
            "position_hint": "single contiguous pose extending across the rear bench",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "freed passenger holding framed photograph",
            "category": "prop",
            "position_hint": "front passenger seat, photograph held directly in front of occupant",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "phone in driver hand",
            "category": "prop",
            "position_hint": "driver seat, immediately beside steering wheel",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L13B01": {
        "bg_id": "L13B01",
        "fp_id": "fp_suv_cabin",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          18,
          19,
          20,
          21,
          26
        ],
        "ignore_numbered_elements": [
          23,
          24,
          25,
          27
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "SUV cabin envelope",
            "category": "area",
            "position_hint": "body shell perimeter, marker near the front center of the contiguous cabin outline",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "driver zone",
            "category": "area",
            "position_hint": "front-left portion of cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "front passenger zone",
            "category": "area",
            "position_hint": "front-right portion of cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "rear seating zone",
            "category": "area",
            "position_hint": "full-width middle-rear portion of cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "center service zone",
            "category": "area",
            "position_hint": "narrow longitudinal strip between the two front seats",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "driver seat",
            "category": "furniture",
            "position_hint": "front-left driver zone, facing the windshield",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "front passenger seat",
            "category": "furniture",
            "position_hint": "front-right passenger zone, facing the windshield",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rear bench seat",
            "category": "furniture",
            "position_hint": "across the rear seating zone, facing forward",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "steering wheel",
            "category": "furniture",
            "position_hint": "front of driver seat, left side of dashboard",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "center console",
            "category": "furniture",
            "position_hint": "between driver and front passenger seats",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "front windshield",
            "category": "opening",
            "position_hint": "single wide opening across the front edge of cabin",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "driver front window",
            "category": "opening",
            "position_hint": "left wall beside driver seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "passenger front window",
            "category": "opening",
            "position_hint": "right wall beside front passenger seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "left rear window",
            "category": "opening",
            "position_hint": "left wall beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "right rear window",
            "category": "opening",
            "position_hint": "right wall beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "driver door",
            "category": "opening",
            "position_hint": "front-left side opening beside driver seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "front passenger door",
            "category": "opening",
            "position_hint": "front-right side opening beside front passenger seat",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "left rear door",
            "category": "opening",
            "position_hint": "left side opening beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "right rear door",
            "category": "opening",
            "position_hint": "right side opening beside rear bench",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 26,
            "label": "freed passenger holding framed photograph",
            "category": "prop",
            "position_hint": "front passenger seat, photograph held directly in front of occupant",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 23,
            "label": "bound captive lying with eyes closed",
            "category": "prop",
            "position_hint": "single contiguous pose extending across the rear bench",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "bound captive lying awake",
            "category": "prop",
            "position_hint": "single contiguous pose extending across the rear bench",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "driver turned toward rear seat",
            "category": "prop",
            "position_hint": "driver seat, upper body oriented rearward",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "phone in driver hand",
            "category": "prop",
            "position_hint": "driver seat, immediately beside steering wheel",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L16B05": {
        "bg_id": "L16B05",
        "fp_id": "fp_l16_boat_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18
        ],
        "ignore_numbered_elements": [
          19,
          20,
          21,
          22,
          23
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Bow lookout zone",
            "category": "area",
            "position_hint": "north end of boat, open deck ahead of wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Starboard circulation passage",
            "category": "area",
            "position_hint": "narrow starboard-side deck run connecting stern and bow",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Stern passenger deck",
            "category": "area",
            "position_hint": "south half of boat behind wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Wheelhouse",
            "category": "area",
            "position_hint": "center-forward deck, offset slightly toward port",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Wheelhouse threshold",
            "category": "area",
            "position_hint": "small exterior landing immediately aft of wheelhouse door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Wheelhouse aft door",
            "category": "opening",
            "position_hint": "aft wall of wheelhouse opening toward stern deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Forward wheelhouse window",
            "category": "opening",
            "position_hint": "north-facing front wall of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Port wheelhouse window",
            "category": "opening",
            "position_hint": "port wall of wheelhouse, single contiguous glazing run",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Starboard wheelhouse window",
            "category": "opening",
            "position_hint": "starboard wall of wheelhouse, single contiguous glazing run",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Helm console and wheel",
            "category": "prop",
            "position_hint": "inside wheelhouse directly behind forward window",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Port stern bench",
            "category": "furniture",
            "position_hint": "port edge of stern passenger deck",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Starboard stern bench",
            "category": "furniture",
            "position_hint": "starboard edge of stern passenger deck",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Bow safety rail",
            "category": "prop",
            "position_hint": "contiguous U-shaped rail around north bow perimeter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Port side safety rail",
            "category": "prop",
            "position_hint": "port outer edge between bow and stern sections",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Starboard side safety rail",
            "category": "prop",
            "position_hint": "starboard outer edge beside circulation passage",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Port stern rail",
            "category": "prop",
            "position_hint": "southwest stern edge, left of centered boarding gate",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Starboard stern rail",
            "category": "prop",
            "position_hint": "southeast stern edge, right of centered boarding gate",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Stern boarding gate",
            "category": "opening",
            "position_hint": "center of south stern edge between stern rail runs",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 21,
            "label": "Dense exterior fog",
            "category": "area",
            "position_hint": "around bow and wheelhouse-facing exterior during fog-bound voyage",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "Overcrowded passenger grouping",
            "category": "area",
            "position_hint": "across stern passenger deck and adjoining circulation area during festival departure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Deployed boarding gangway",
            "category": "prop",
            "position_hint": "single span between dock edge and centered stern boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "marker #19 in ignore_numbered_elements is a base layer marker ('base_structural_unit'); structural elements normally remain in use",
          "marker #20 in ignore_numbered_elements is a base layer marker ('base_persistent_fixture'); structural elements normally remain in use",
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L16B04": {
        "bg_id": "L16B04",
        "fp_id": "fp_l16_boat_deck",
        "use_numbered_elements": [
          2,
          3,
          4,
          5,
          6,
          11,
          12,
          14,
          15,
          16,
          17,
          18
        ],
        "ignore_numbered_elements": [
          19,
          20,
          21,
          22,
          23
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "Starboard circulation passage",
            "category": "area",
            "position_hint": "narrow starboard-side deck run connecting stern and bow",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Stern passenger deck",
            "category": "area",
            "position_hint": "south half of boat behind wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Wheelhouse",
            "category": "area",
            "position_hint": "center-forward deck, offset slightly toward port",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Wheelhouse threshold",
            "category": "area",
            "position_hint": "small exterior landing immediately aft of wheelhouse door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Wheelhouse aft door",
            "category": "opening",
            "position_hint": "aft wall of wheelhouse opening toward stern deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Port stern bench",
            "category": "furniture",
            "position_hint": "port edge of stern passenger deck",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Starboard stern bench",
            "category": "furniture",
            "position_hint": "starboard edge of stern passenger deck",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Port side safety rail",
            "category": "prop",
            "position_hint": "port outer edge between bow and stern sections",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Starboard side safety rail",
            "category": "prop",
            "position_hint": "starboard outer edge beside circulation passage",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Port stern rail",
            "category": "prop",
            "position_hint": "southwest stern edge, left of centered boarding gate",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Starboard stern rail",
            "category": "prop",
            "position_hint": "southeast stern edge, right of centered boarding gate",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Stern boarding gate",
            "category": "opening",
            "position_hint": "center of south stern edge between stern rail runs",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 21,
            "label": "Dense exterior fog",
            "category": "area",
            "position_hint": "around bow and wheelhouse-facing exterior during fog-bound voyage",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "Overcrowded passenger grouping",
            "category": "area",
            "position_hint": "across stern passenger deck and adjoining circulation area during festival departure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Deployed boarding gangway",
            "category": "prop",
            "position_hint": "single span between dock edge and centered stern boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          3,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "marker #19 in ignore_numbered_elements is a base layer marker ('base_structural_unit'); structural elements normally remain in use",
          "marker #20 in ignore_numbered_elements is a base layer marker ('base_persistent_fixture'); structural elements normally remain in use",
          "multiple base_structural_unit markers in use_numbered_elements ([2, 3, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L16B03": {
        "bg_id": "L16B03",
        "fp_id": "fp_l16_boat_deck",
        "use_numbered_elements": [
          1,
          2,
          4,
          7,
          8,
          9,
          10,
          13,
          14,
          15,
          21
        ],
        "ignore_numbered_elements": [
          19,
          20,
          22,
          23
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Bow lookout zone",
            "category": "area",
            "position_hint": "north end of boat, open deck ahead of wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Starboard circulation passage",
            "category": "area",
            "position_hint": "narrow starboard-side deck run connecting stern and bow",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Wheelhouse",
            "category": "area",
            "position_hint": "center-forward deck, offset slightly toward port",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Forward wheelhouse window",
            "category": "opening",
            "position_hint": "north-facing front wall of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Port wheelhouse window",
            "category": "opening",
            "position_hint": "port wall of wheelhouse, single contiguous glazing run",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Starboard wheelhouse window",
            "category": "opening",
            "position_hint": "starboard wall of wheelhouse, single contiguous glazing run",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Helm console and wheel",
            "category": "prop",
            "position_hint": "inside wheelhouse directly behind forward window",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Bow safety rail",
            "category": "prop",
            "position_hint": "contiguous U-shaped rail around north bow perimeter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Port side safety rail",
            "category": "prop",
            "position_hint": "port outer edge between bow and stern sections",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Starboard side safety rail",
            "category": "prop",
            "position_hint": "starboard outer edge beside circulation passage",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 21,
            "label": "Dense exterior fog",
            "category": "area",
            "position_hint": "around bow and wheelhouse-facing exterior during fog-bound voyage",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "Overcrowded passenger grouping",
            "category": "area",
            "position_hint": "across stern passenger deck and adjoining circulation area during festival departure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Deployed boarding gangway",
            "category": "prop",
            "position_hint": "single span between dock edge and centered stern boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "marker #19 in ignore_numbered_elements is a base layer marker ('base_structural_unit'); structural elements normally remain in use",
          "marker #20 in ignore_numbered_elements is a base layer marker ('base_persistent_fixture'); structural elements normally remain in use",
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L16B02": {
        "bg_id": "L16B02",
        "fp_id": "fp_l16_boat_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          20,
          22,
          23
        ],
        "ignore_numbered_elements": [
          21
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Bow lookout zone",
            "category": "area",
            "position_hint": "north end of boat, open deck ahead of wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Starboard circulation passage",
            "category": "area",
            "position_hint": "narrow starboard-side deck run connecting stern and bow",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Stern passenger deck",
            "category": "area",
            "position_hint": "south half of boat behind wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Wheelhouse",
            "category": "area",
            "position_hint": "center-forward deck, offset slightly toward port",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Wheelhouse threshold",
            "category": "area",
            "position_hint": "small exterior landing immediately aft of wheelhouse door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Wheelhouse aft door",
            "category": "opening",
            "position_hint": "aft wall of wheelhouse opening toward stern deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Forward wheelhouse window",
            "category": "opening",
            "position_hint": "north-facing front wall of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Port wheelhouse window",
            "category": "opening",
            "position_hint": "port wall of wheelhouse, single contiguous glazing run",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Starboard wheelhouse window",
            "category": "opening",
            "position_hint": "starboard wall of wheelhouse, single contiguous glazing run",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Helm console and wheel",
            "category": "prop",
            "position_hint": "inside wheelhouse directly behind forward window",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Port stern bench",
            "category": "furniture",
            "position_hint": "port edge of stern passenger deck",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Starboard stern bench",
            "category": "furniture",
            "position_hint": "starboard edge of stern passenger deck",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Bow safety rail",
            "category": "prop",
            "position_hint": "contiguous U-shaped rail around north bow perimeter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Port side safety rail",
            "category": "prop",
            "position_hint": "port outer edge between bow and stern sections",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Starboard side safety rail",
            "category": "prop",
            "position_hint": "starboard outer edge beside circulation passage",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Port stern rail",
            "category": "prop",
            "position_hint": "southwest stern edge, left of centered boarding gate",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Starboard stern rail",
            "category": "prop",
            "position_hint": "southeast stern edge, right of centered boarding gate",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Stern boarding gate",
            "category": "opening",
            "position_hint": "center of south stern edge between stern rail runs",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Dock edge",
            "category": "area",
            "position_hint": "horizontal dock strip immediately south of stern",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Dock bollard",
            "category": "prop",
            "position_hint": "dock edge southwest of stern boarding alignment",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 22,
            "label": "Overcrowded passenger grouping",
            "category": "area",
            "position_hint": "across stern passenger deck and adjoining circulation area during festival departure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Deployed boarding gangway",
            "category": "prop",
            "position_hint": "single span between dock edge and centered stern boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 21,
            "label": "Dense exterior fog",
            "category": "area",
            "position_hint": "around bow and wheelhouse-facing exterior during fog-bound voyage",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5,
          19
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5, 19]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L19B01": {
        "bg_id": "L19B01",
        "fp_id": "fp_l19_pier",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          8,
          9,
          10,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [
          15,
          16,
          17,
          18,
          19,
          20,
          21,
          22,
          23
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main pier deck",
            "category": "area",
            "position_hint": "central concrete finger pier extending south from the village shore",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "east working berth",
            "category": "area",
            "position_hint": "east side of the outer half of the main pier deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "west working berth",
            "category": "area",
            "position_hint": "west side of the outer half of the main pier deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "gear warehouse",
            "category": "area",
            "position_hint": "west side of the shoreward end of the pier",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "warehouse double door",
            "category": "opening",
            "position_hint": "southeast face of the gear warehouse opening onto the pier threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "village approach route",
            "category": "area",
            "position_hint": "north end of the pier continuing inland between village buildings",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "eatery frontage",
            "category": "area",
            "position_hint": "east side of the village approach near the pier entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "eatery entrance",
            "category": "opening",
            "position_hint": "west-facing edge of the eatery frontage toward the village route",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "mooring bollard",
            "category": "prop",
            "position_hint": "east edge of the outer pier beside the fishing-boat berth",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "moored fishing boat",
            "category": "prop",
            "position_hint": "single vessel alongside the east working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "arrival crowd",
            "category": "area",
            "position_hint": "single dense gathering on the east half of the pier beside the arriving boat",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "ritual rope decorations",
            "category": "prop",
            "position_hint": "single decorated rail run on the pier-facing side of the fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "body on plastic sheet",
            "category": "prop",
            "position_hint": "open central portion of the pier deck between the shore and outer berths",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "viewing crowd",
            "category": "area",
            "position_hint": "single loose ring around the body-display position on the central pier",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "temporary work lights",
            "category": "prop",
            "position_hint": "single work-light cluster near the east berth and fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "flashlight search party",
            "category": "area",
            "position_hint": "single staging cluster at the shoreward pier junction leading toward the village",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "patrol boat",
            "category": "prop",
            "position_hint": "single vessel alongside the west working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "fallen detective",
            "category": "prop",
            "position_hint": "west side of the pier deck between the warehouse threshold and patrol boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "charging villagers",
            "category": "area",
            "position_hint": "single advancing group on the pier corridor from the village route toward the west berth",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "vision figure holding drowned corpse",
            "category": "prop",
            "position_hint": "single seated tableau at the outer tip of the pier facing open water",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          8,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 8, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L19B02": {
        "bg_id": "L19B02",
        "fp_id": "fp_l19_pier",
        "use_numbered_elements": [
          1,
          2,
          4,
          5,
          12,
          13,
          15
        ],
        "ignore_numbered_elements": [
          14,
          16,
          17,
          18,
          19,
          20,
          21,
          22,
          23
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main pier deck",
            "category": "area",
            "position_hint": "central concrete finger pier extending south from the village shore",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "east working berth",
            "category": "area",
            "position_hint": "east side of the outer half of the main pier deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "gear warehouse",
            "category": "area",
            "position_hint": "west side of the shoreward end of the pier",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "warehouse double door",
            "category": "opening",
            "position_hint": "southeast face of the gear warehouse opening onto the pier threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "mooring bollard",
            "category": "prop",
            "position_hint": "east edge of the outer pier beside the fishing-boat berth",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "moored fishing boat",
            "category": "prop",
            "position_hint": "single vessel alongside the east working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "ritual rope decorations",
            "category": "prop",
            "position_hint": "single decorated rail run on the pier-facing side of the fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 14,
            "label": "arrival crowd",
            "category": "area",
            "position_hint": "single dense gathering on the east half of the pier beside the arriving boat",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "body on plastic sheet",
            "category": "prop",
            "position_hint": "open central portion of the pier deck between the shore and outer berths",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "viewing crowd",
            "category": "area",
            "position_hint": "single loose ring around the body-display position on the central pier",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "temporary work lights",
            "category": "prop",
            "position_hint": "single work-light cluster near the east berth and fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "flashlight search party",
            "category": "area",
            "position_hint": "single staging cluster at the shoreward pier junction leading toward the village",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "patrol boat",
            "category": "prop",
            "position_hint": "single vessel alongside the west working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "fallen detective",
            "category": "prop",
            "position_hint": "west side of the pier deck between the warehouse threshold and patrol boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "charging villagers",
            "category": "area",
            "position_hint": "single advancing group on the pier corridor from the village route toward the west berth",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "vision figure holding drowned corpse",
            "category": "prop",
            "position_hint": "single seated tableau at the outer tip of the pier facing open water",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L19B05": {
        "bg_id": "L19B05",
        "fp_id": "fp_l19_pier",
        "use_numbered_elements": [
          1,
          2,
          3,
          8,
          12,
          16,
          17,
          20
        ],
        "ignore_numbered_elements": [
          13,
          14,
          15,
          18,
          19,
          21,
          22,
          23
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main pier deck",
            "category": "area",
            "position_hint": "central concrete finger pier extending south from the village shore",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "east working berth",
            "category": "area",
            "position_hint": "east side of the outer half of the main pier deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "west working berth",
            "category": "area",
            "position_hint": "west side of the outer half of the main pier deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "village approach route",
            "category": "area",
            "position_hint": "north end of the pier continuing inland between village buildings",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "mooring bollard",
            "category": "prop",
            "position_hint": "east edge of the outer pier beside the fishing-boat berth",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 16,
            "label": "body on plastic sheet",
            "category": "prop",
            "position_hint": "open central portion of the pier deck between the shore and outer berths",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "viewing crowd",
            "category": "area",
            "position_hint": "single loose ring around the body-display position on the central pier",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "patrol boat",
            "category": "prop",
            "position_hint": "single vessel alongside the west working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "moored fishing boat",
            "category": "prop",
            "position_hint": "single vessel alongside the east working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "arrival crowd",
            "category": "area",
            "position_hint": "single dense gathering on the east half of the pier beside the arriving boat",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "ritual rope decorations",
            "category": "prop",
            "position_hint": "single decorated rail run on the pier-facing side of the fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "temporary work lights",
            "category": "prop",
            "position_hint": "single work-light cluster near the east berth and fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "flashlight search party",
            "category": "area",
            "position_hint": "single staging cluster at the shoreward pier junction leading toward the village",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "fallen detective",
            "category": "prop",
            "position_hint": "west side of the pier deck between the warehouse threshold and patrol boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "charging villagers",
            "category": "area",
            "position_hint": "single advancing group on the pier corridor from the village route toward the west berth",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "vision figure holding drowned corpse",
            "category": "prop",
            "position_hint": "single seated tableau at the outer tip of the pier facing open water",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L19B06": {
        "bg_id": "L19B06",
        "fp_id": "fp_l19_pier",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          8,
          12,
          13,
          18,
          19
        ],
        "ignore_numbered_elements": [
          14,
          15,
          16,
          17,
          20,
          21,
          22,
          23
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main pier deck",
            "category": "area",
            "position_hint": "central concrete finger pier extending south from the village shore",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "east working berth",
            "category": "area",
            "position_hint": "east side of the outer half of the main pier deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "west working berth",
            "category": "area",
            "position_hint": "west side of the outer half of the main pier deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "gear warehouse",
            "category": "area",
            "position_hint": "west side of the shoreward end of the pier",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "warehouse double door",
            "category": "opening",
            "position_hint": "southeast face of the gear warehouse opening onto the pier threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "village approach route",
            "category": "area",
            "position_hint": "north end of the pier continuing inland between village buildings",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "mooring bollard",
            "category": "prop",
            "position_hint": "east edge of the outer pier beside the fishing-boat berth",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "moored fishing boat",
            "category": "prop",
            "position_hint": "single vessel alongside the east working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "temporary work lights",
            "category": "prop",
            "position_hint": "single work-light cluster near the east berth and fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "flashlight search party",
            "category": "area",
            "position_hint": "single staging cluster at the shoreward pier junction leading toward the village",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 14,
            "label": "arrival crowd",
            "category": "area",
            "position_hint": "single dense gathering on the east half of the pier beside the arriving boat",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "ritual rope decorations",
            "category": "prop",
            "position_hint": "single decorated rail run on the pier-facing side of the fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "body on plastic sheet",
            "category": "prop",
            "position_hint": "open central portion of the pier deck between the shore and outer berths",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "viewing crowd",
            "category": "area",
            "position_hint": "single loose ring around the body-display position on the central pier",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "patrol boat",
            "category": "prop",
            "position_hint": "single vessel alongside the west working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "fallen detective",
            "category": "prop",
            "position_hint": "west side of the pier deck between the warehouse threshold and patrol boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "charging villagers",
            "category": "area",
            "position_hint": "single advancing group on the pier corridor from the village route toward the west berth",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "vision figure holding drowned corpse",
            "category": "prop",
            "position_hint": "single seated tableau at the outer tip of the pier facing open water",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L19B03": {
        "bg_id": "L19B03",
        "fp_id": "fp_l19_pier",
        "use_numbered_elements": [
          1,
          3,
          4,
          5,
          8,
          12,
          20,
          21,
          22
        ],
        "ignore_numbered_elements": [
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          23
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main pier deck",
            "category": "area",
            "position_hint": "central concrete finger pier extending south from the village shore",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "west working berth",
            "category": "area",
            "position_hint": "west side of the outer half of the main pier deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "gear warehouse",
            "category": "area",
            "position_hint": "west side of the shoreward end of the pier",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "warehouse double door",
            "category": "opening",
            "position_hint": "southeast face of the gear warehouse opening onto the pier threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "village approach route",
            "category": "area",
            "position_hint": "north end of the pier continuing inland between village buildings",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "mooring bollard",
            "category": "prop",
            "position_hint": "east edge of the outer pier beside the fishing-boat berth",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 20,
            "label": "patrol boat",
            "category": "prop",
            "position_hint": "single vessel alongside the west working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "fallen detective",
            "category": "prop",
            "position_hint": "west side of the pier deck between the warehouse threshold and patrol boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "charging villagers",
            "category": "area",
            "position_hint": "single advancing group on the pier corridor from the village route toward the west berth",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "moored fishing boat",
            "category": "prop",
            "position_hint": "single vessel alongside the east working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "arrival crowd",
            "category": "area",
            "position_hint": "single dense gathering on the east half of the pier beside the arriving boat",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "ritual rope decorations",
            "category": "prop",
            "position_hint": "single decorated rail run on the pier-facing side of the fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "body on plastic sheet",
            "category": "prop",
            "position_hint": "open central portion of the pier deck between the shore and outer berths",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "viewing crowd",
            "category": "area",
            "position_hint": "single loose ring around the body-display position on the central pier",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "temporary work lights",
            "category": "prop",
            "position_hint": "single work-light cluster near the east berth and fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "flashlight search party",
            "category": "area",
            "position_hint": "single staging cluster at the shoreward pier junction leading toward the village",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "vision figure holding drowned corpse",
            "category": "prop",
            "position_hint": "single seated tableau at the outer tip of the pier facing open water",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          4,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 4, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L19B04": {
        "bg_id": "L19B04",
        "fp_id": "fp_l19_pier",
        "use_numbered_elements": [
          1,
          2,
          3,
          11,
          12,
          23
        ],
        "ignore_numbered_elements": [
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          20,
          21,
          22
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main pier deck",
            "category": "area",
            "position_hint": "central concrete finger pier extending south from the village shore",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "east working berth",
            "category": "area",
            "position_hint": "east side of the outer half of the main pier deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "west working berth",
            "category": "area",
            "position_hint": "west side of the outer half of the main pier deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "sea access ladder",
            "category": "prop",
            "position_hint": "outer south edge of the pier tip descending toward the water",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "mooring bollard",
            "category": "prop",
            "position_hint": "east edge of the outer pier beside the fishing-boat berth",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 23,
            "label": "vision figure holding drowned corpse",
            "category": "prop",
            "position_hint": "single seated tableau at the outer tip of the pier facing open water",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "moored fishing boat",
            "category": "prop",
            "position_hint": "single vessel alongside the east working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "arrival crowd",
            "category": "area",
            "position_hint": "single dense gathering on the east half of the pier beside the arriving boat",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "ritual rope decorations",
            "category": "prop",
            "position_hint": "single decorated rail run on the pier-facing side of the fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "body on plastic sheet",
            "category": "prop",
            "position_hint": "open central portion of the pier deck between the shore and outer berths",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "viewing crowd",
            "category": "area",
            "position_hint": "single loose ring around the body-display position on the central pier",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "temporary work lights",
            "category": "prop",
            "position_hint": "single work-light cluster near the east berth and fishing boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "flashlight search party",
            "category": "area",
            "position_hint": "single staging cluster at the shoreward pier junction leading toward the village",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "patrol boat",
            "category": "prop",
            "position_hint": "single vessel alongside the west working berth",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "fallen detective",
            "category": "prop",
            "position_hint": "west side of the pier deck between the warehouse threshold and patrol boat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "charging villagers",
            "category": "area",
            "position_hint": "single advancing group on the pier corridor from the village route toward the west berth",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L49B04": {
        "bg_id": "L49B04",
        "fp_id": "fp_l49_gear_warehouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          6,
          8,
          9,
          11,
          12,
          13,
          15,
          16
        ],
        "ignore_numbered_elements": [
          17,
          18,
          19
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "warehouse storage zone",
            "category": "area",
            "position_hint": "contiguous north and west storage portion of the warehouse interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "central aisle network",
            "category": "area",
            "position_hint": "connected narrow circulation route crossing the center of the warehouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "west concealment pocket",
            "category": "area",
            "position_hint": "recessed west-side pocket behind the net storage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "south wall directly inside the main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "main warehouse door",
            "category": "opening",
            "position_hint": "south wall near the southwest side, opening toward the dock approach",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "north fishing net stack",
            "category": "prop",
            "position_hint": "single tall contiguous stack against the north wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "west fishing rod rack",
            "category": "prop",
            "position_hint": "single rack along the west wall north of the concealment pocket",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "northeast fish basket stack",
            "category": "prop",
            "position_hint": "single tall basket stack in the northeast corner",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "west net mound",
            "category": "prop",
            "position_hint": "inside the west concealment pocket, screening it from the aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "central trap stack",
            "category": "prop",
            "position_hint": "north side of the central aisle intersection",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "bloodied fugitives hidden in nets",
            "category": "prop",
            "position_hint": "one concealed grouping within the west net mound at number 12; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "flashlight search sweep",
            "category": "prop",
            "position_hint": "single search path entering from number 6 toward number 2; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 17,
            "label": "historical kitchen vision",
            "category": "area",
            "position_hint": "alternate historical interior replacing the warehouse rather than occupying it physically; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "mother child and corpse vision",
            "category": "prop",
            "position_hint": "single floor-level grouping inside the alternate kitchen vision at number 17; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "defensive revolver",
            "category": "prop",
            "position_hint": "temporary handheld or nearby object beside the central aisle near the window; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L49B01": {
        "bg_id": "L49B01",
        "fp_id": "fp_l49_gear_warehouse",
        "use_numbered_elements": [
          17,
          18
        ],
        "ignore_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          19
        ],
        "base_markers_to_reference": [],
        "transient_markers_to_describe": [
          {
            "number": 17,
            "label": "historical kitchen vision",
            "category": "area",
            "position_hint": "alternate historical interior replacing the warehouse rather than occupying it physically; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "mother child and corpse vision",
            "category": "prop",
            "position_hint": "single floor-level grouping inside the alternate kitchen vision at number 17; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "bloodied fugitives hidden in nets",
            "category": "prop",
            "position_hint": "one concealed grouping within the west net mound at number 12; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "flashlight search sweep",
            "category": "prop",
            "position_hint": "single search path entering from number 6 toward number 2; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "defensive revolver",
            "category": "prop",
            "position_hint": "temporary handheld or nearby object beside the central aisle near the window; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "marker #1 in ignore_numbered_elements is a base layer marker ('base_structural_unit'); structural elements normally remain in use",
          "marker #2 in ignore_numbered_elements is a base layer marker ('base_structural_unit'); structural elements normally remain in use",
          "marker #3 in ignore_numbered_elements is a base layer marker ('base_structural_unit'); structural elements normally remain in use",
          "marker #4 in ignore_numbered_elements is a base layer marker ('base_structural_unit'); structural elements normally remain in use",
          "marker #5 in ignore_numbered_elements is a base layer marker ('base_structural_unit'); structural elements normally remain in use",
          "marker #6 in ignore_numbered_elements is a base layer marker ('base_opening'); structural elements normally remain in use",
          "marker #7 in ignore_numbered_elements is a base layer marker ('base_opening'); structural elements normally remain in use",
          "marker #8 in ignore_numbered_elements is a base layer marker ('base_persistent_furniture'); structural elements normally remain in use",
          "marker #9 in ignore_numbered_elements is a base layer marker ('base_persistent_furniture'); structural elements normally remain in use",
          "marker #10 in ignore_numbered_elements is a base layer marker ('base_persistent_furniture'); structural elements normally remain in use",
          "marker #11 in ignore_numbered_elements is a base layer marker ('base_persistent_furniture'); structural elements normally remain in use",
          "marker #12 in ignore_numbered_elements is a base layer marker ('base_persistent_furniture'); structural elements normally remain in use",
          "marker #13 in ignore_numbered_elements is a base layer marker ('base_persistent_furniture'); structural elements normally remain in use",
          "marker #14 in ignore_numbered_elements is a base layer marker ('base_persistent_furniture'); structural elements normally remain in use",
          "no base_structural_unit marker in use_numbered_elements; dominant_target_unit_marker_number left empty"
        ]
      },
      "L49B05": {
        "bg_id": "L49B05",
        "fp_id": "fp_l49_gear_warehouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          6,
          8,
          9,
          12,
          13
        ],
        "ignore_numbered_elements": [
          15,
          16,
          17,
          18,
          19
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "warehouse storage zone",
            "category": "area",
            "position_hint": "contiguous north and west storage portion of the warehouse interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "central aisle network",
            "category": "area",
            "position_hint": "connected narrow circulation route crossing the center of the warehouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "west concealment pocket",
            "category": "area",
            "position_hint": "recessed west-side pocket behind the net storage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "south wall directly inside the main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "main warehouse door",
            "category": "opening",
            "position_hint": "south wall near the southwest side, opening toward the dock approach",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "north fishing net stack",
            "category": "prop",
            "position_hint": "single tall contiguous stack against the north wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "west fishing rod rack",
            "category": "prop",
            "position_hint": "single rack along the west wall north of the concealment pocket",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "west net mound",
            "category": "prop",
            "position_hint": "inside the west concealment pocket, screening it from the aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "central trap stack",
            "category": "prop",
            "position_hint": "north side of the central aisle intersection",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "bloodied fugitives hidden in nets",
            "category": "prop",
            "position_hint": "one concealed grouping within the west net mound at number 12; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "flashlight search sweep",
            "category": "prop",
            "position_hint": "single search path entering from number 6 toward number 2; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "historical kitchen vision",
            "category": "area",
            "position_hint": "alternate historical interior replacing the warehouse rather than occupying it physically; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "mother child and corpse vision",
            "category": "prop",
            "position_hint": "single floor-level grouping inside the alternate kitchen vision at number 17; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "defensive revolver",
            "category": "prop",
            "position_hint": "temporary handheld or nearby object beside the central aisle near the window; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L49B03": {
        "bg_id": "L49B03",
        "fp_id": "fp_l49_gear_warehouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          8,
          10,
          11,
          12,
          13,
          14,
          19
        ],
        "ignore_numbered_elements": [
          15,
          16,
          17,
          18
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "warehouse storage zone",
            "category": "area",
            "position_hint": "contiguous north and west storage portion of the warehouse interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "central aisle network",
            "category": "area",
            "position_hint": "connected narrow circulation route crossing the center of the warehouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "west concealment pocket",
            "category": "area",
            "position_hint": "recessed west-side pocket behind the net storage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "east gear service zone",
            "category": "area",
            "position_hint": "east side between the window and stacked gear",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "main warehouse door",
            "category": "opening",
            "position_hint": "south wall near the southwest side, opening toward the dock approach",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "dusty dock-facing window",
            "category": "opening",
            "position_hint": "east wall near the middle of the service zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "north fishing net stack",
            "category": "prop",
            "position_hint": "single tall contiguous stack against the north wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "east fish trap stack",
            "category": "prop",
            "position_hint": "single contiguous stack against the east wall north of the window",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "northeast fish basket stack",
            "category": "prop",
            "position_hint": "single tall basket stack in the northeast corner",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "west net mound",
            "category": "prop",
            "position_hint": "inside the west concealment pocket, screening it from the aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "central trap stack",
            "category": "prop",
            "position_hint": "north side of the central aisle intersection",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "southeast gear crate stack",
            "category": "prop",
            "position_hint": "single contiguous stack in the southeast service-side corner",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 19,
            "label": "defensive revolver",
            "category": "prop",
            "position_hint": "temporary handheld or nearby object beside the central aisle near the window; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "bloodied fugitives hidden in nets",
            "category": "prop",
            "position_hint": "one concealed grouping within the west net mound at number 12; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "flashlight search sweep",
            "category": "prop",
            "position_hint": "single search path entering from number 6 toward number 2; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "historical kitchen vision",
            "category": "area",
            "position_hint": "alternate historical interior replacing the warehouse rather than occupying it physically; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "mother child and corpse vision",
            "category": "prop",
            "position_hint": "single floor-level grouping inside the alternate kitchen vision at number 17; not drawn on the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L20B02": {
        "bg_id": "L20B02",
        "fp_id": "fp_l20_restaurant_main",
        "use_numbered_elements": [
          1,
          2,
          5,
          6,
          7,
          11,
          13,
          15,
          17,
          18,
          19,
          20,
          25
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          30,
          31
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "restaurant hall",
            "category": "area",
            "position_hint": "central and front portion of the unified interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "kitchen work zone",
            "category": "area",
            "position_hint": "rear-left portion, directly adjoining the restaurant hall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "retail display zone",
            "category": "area",
            "position_hint": "continuous strip along the left side of the restaurant hall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "front threshold zone",
            "category": "area",
            "position_hint": "south-front edge between the hall and main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "front sliding entrance",
            "category": "opening",
            "position_hint": "center of the south facade at the front threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "front lattice window run",
            "category": "opening",
            "position_hint": "south facade beside the front sliding entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "main dining table",
            "category": "furniture",
            "position_hint": "central restaurant hall with circulation space on all sides",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "grocery shelving unit",
            "category": "furniture",
            "position_hint": "front half of the retail display zone along the left wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "kitchen preparation counter",
            "category": "furniture",
            "position_hint": "hall-facing side of the kitchen work zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "kitchen sink",
            "category": "prop",
            "position_hint": "north wall of the kitchen near the rear service exit",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "kitchen cooktop",
            "category": "prop",
            "position_hint": "west wall of the kitchen beside the preparation counter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "kitchen refrigerator",
            "category": "prop",
            "position_hint": "rear corner of the kitchen opposite the hall opening",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 25,
            "label": "raw meat meal spread",
            "category": "prop",
            "position_hint": "single contiguous spread on the main dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "goat butchering setup",
            "category": "prop",
            "position_hint": "single preparation spot on the kitchen counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "searchers outside entrance",
            "category": "prop",
            "position_hint": "single exterior gathering visible through the front sliding entrance",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "cold moonlight patch",
            "category": "prop",
            "position_hint": "single patch entering through the front lattice window run",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "red dusk wash",
            "category": "prop",
            "position_hint": "single patch entering through the front and side facade corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "festival preparation bundles",
            "category": "prop",
            "position_hint": "single grouped preparation spot inside the elder private room",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloodied dining-table traces",
            "category": "prop",
            "position_hint": "single localized area on and beside the main dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L20B06": {
        "bg_id": "L20B06",
        "fp_id": "fp_l20_restaurant_main",
        "use_numbered_elements": [
          1,
          5,
          6,
          7,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          28
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          29,
          30,
          31
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "restaurant hall",
            "category": "area",
            "position_hint": "central and front portion of the unified interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "retail display zone",
            "category": "area",
            "position_hint": "continuous strip along the left side of the restaurant hall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "front threshold zone",
            "category": "area",
            "position_hint": "south-front edge between the hall and main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "front sliding entrance",
            "category": "opening",
            "position_hint": "center of the south facade at the front threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "elder room sliding door",
            "category": "opening",
            "position_hint": "hall-facing wall of the elder private room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "guest room sliding door",
            "category": "opening",
            "position_hint": "hall-facing wall of the guest rear room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "front lattice window run",
            "category": "opening",
            "position_hint": "south facade beside the front sliding entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "side lattice window run",
            "category": "opening",
            "position_hint": "east wall of the restaurant hall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "main dining table",
            "category": "furniture",
            "position_hint": "central restaurant hall with circulation space on all sides",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "corner dining table",
            "category": "furniture",
            "position_hint": "rear corner of the hall near the private-room doors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "grocery shelving unit",
            "category": "furniture",
            "position_hint": "front half of the retail display zone along the left wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "fishing supplies display rack",
            "category": "furniture",
            "position_hint": "rear half of the retail display zone near the kitchen boundary",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 28,
            "label": "cold moonlight patch",
            "category": "prop",
            "position_hint": "single patch entering through the front lattice window run",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "raw meat meal spread",
            "category": "prop",
            "position_hint": "single contiguous spread on the main dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "goat butchering setup",
            "category": "prop",
            "position_hint": "single preparation spot on the kitchen counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "searchers outside entrance",
            "category": "prop",
            "position_hint": "single exterior gathering visible through the front sliding entrance",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "red dusk wash",
            "category": "prop",
            "position_hint": "single patch entering through the front and side facade corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "festival preparation bundles",
            "category": "prop",
            "position_hint": "single grouped preparation spot inside the elder private room",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloodied dining-table traces",
            "category": "prop",
            "position_hint": "single localized area on and beside the main dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L20B01": {
        "bg_id": "L20B01",
        "fp_id": "fp_l20_restaurant_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          9,
          13,
          14,
          17,
          18,
          19,
          20,
          21,
          26,
          30
        ],
        "ignore_numbered_elements": [
          25,
          27,
          28,
          29,
          31
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "restaurant hall",
            "category": "area",
            "position_hint": "central and front portion of the unified interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "kitchen work zone",
            "category": "area",
            "position_hint": "rear-left portion, directly adjoining the restaurant hall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "elder private room",
            "category": "area",
            "position_hint": "rear-right portion beside the kitchen",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "elder room sliding door",
            "category": "opening",
            "position_hint": "hall-facing wall of the elder private room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "main dining table",
            "category": "furniture",
            "position_hint": "central restaurant hall with circulation space on all sides",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "corner dining table",
            "category": "furniture",
            "position_hint": "rear corner of the hall near the private-room doors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "kitchen preparation counter",
            "category": "furniture",
            "position_hint": "hall-facing side of the kitchen work zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "kitchen sink",
            "category": "prop",
            "position_hint": "north wall of the kitchen near the rear service exit",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "kitchen cooktop",
            "category": "prop",
            "position_hint": "west wall of the kitchen beside the preparation counter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "kitchen refrigerator",
            "category": "prop",
            "position_hint": "rear corner of the kitchen opposite the hall opening",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "private room wardrobe",
            "category": "furniture",
            "position_hint": "rear wall of the elder private room",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 26,
            "label": "goat butchering setup",
            "category": "prop",
            "position_hint": "single preparation spot on the kitchen counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "festival preparation bundles",
            "category": "prop",
            "position_hint": "single grouped preparation spot inside the elder private room",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "raw meat meal spread",
            "category": "prop",
            "position_hint": "single contiguous spread on the main dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "searchers outside entrance",
            "category": "prop",
            "position_hint": "single exterior gathering visible through the front sliding entrance",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "cold moonlight patch",
            "category": "prop",
            "position_hint": "single patch entering through the front lattice window run",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "red dusk wash",
            "category": "prop",
            "position_hint": "single patch entering through the front and side facade corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloodied dining-table traces",
            "category": "prop",
            "position_hint": "single localized area on and beside the main dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L20B05": {
        "bg_id": "L20B05",
        "fp_id": "fp_l20_restaurant_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          9,
          12,
          13,
          17,
          19,
          25,
          30,
          31
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "restaurant hall",
            "category": "area",
            "position_hint": "central and front portion of the unified interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "kitchen work zone",
            "category": "area",
            "position_hint": "rear-left portion, directly adjoining the restaurant hall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "elder private room",
            "category": "area",
            "position_hint": "rear-right portion beside the kitchen",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "elder room sliding door",
            "category": "opening",
            "position_hint": "hall-facing wall of the elder private room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "side lattice window run",
            "category": "opening",
            "position_hint": "east wall of the restaurant hall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "main dining table",
            "category": "furniture",
            "position_hint": "central restaurant hall with circulation space on all sides",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "kitchen preparation counter",
            "category": "furniture",
            "position_hint": "hall-facing side of the kitchen work zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "kitchen cooktop",
            "category": "prop",
            "position_hint": "west wall of the kitchen beside the preparation counter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 25,
            "label": "raw meat meal spread",
            "category": "prop",
            "position_hint": "single contiguous spread on the main dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "festival preparation bundles",
            "category": "prop",
            "position_hint": "single grouped preparation spot inside the elder private room",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloodied dining-table traces",
            "category": "prop",
            "position_hint": "single localized area on and beside the main dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "goat butchering setup",
            "category": "prop",
            "position_hint": "single preparation spot on the kitchen counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "searchers outside entrance",
            "category": "prop",
            "position_hint": "single exterior gathering visible through the front sliding entrance",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "cold moonlight patch",
            "category": "prop",
            "position_hint": "single patch entering through the front lattice window run",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "red dusk wash",
            "category": "prop",
            "position_hint": "single patch entering through the front and side facade corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L20B03": {
        "bg_id": "L20B03",
        "fp_id": "fp_l20_restaurant_main",
        "use_numbered_elements": [
          1,
          5,
          6,
          7,
          11,
          13,
          15,
          27
        ],
        "ignore_numbered_elements": [
          25,
          26,
          28,
          29,
          30,
          31
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "restaurant hall",
            "category": "area",
            "position_hint": "central and front portion of the unified interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "retail display zone",
            "category": "area",
            "position_hint": "continuous strip along the left side of the restaurant hall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "front threshold zone",
            "category": "area",
            "position_hint": "south-front edge between the hall and main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "front sliding entrance",
            "category": "opening",
            "position_hint": "center of the south facade at the front threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "front lattice window run",
            "category": "opening",
            "position_hint": "south facade beside the front sliding entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "main dining table",
            "category": "furniture",
            "position_hint": "central restaurant hall with circulation space on all sides",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "grocery shelving unit",
            "category": "furniture",
            "position_hint": "front half of the retail display zone along the left wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 27,
            "label": "searchers outside entrance",
            "category": "prop",
            "position_hint": "single exterior gathering visible through the front sliding entrance",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "raw meat meal spread",
            "category": "prop",
            "position_hint": "single contiguous spread on the main dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "goat butchering setup",
            "category": "prop",
            "position_hint": "single preparation spot on the kitchen counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "cold moonlight patch",
            "category": "prop",
            "position_hint": "single patch entering through the front lattice window run",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "red dusk wash",
            "category": "prop",
            "position_hint": "single patch entering through the front and side facade corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "festival preparation bundles",
            "category": "prop",
            "position_hint": "single grouped preparation spot inside the elder private room",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloodied dining-table traces",
            "category": "prop",
            "position_hint": "single localized area on and beside the main dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L20B04": {
        "bg_id": "L20B04",
        "fp_id": "fp_l20_restaurant_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          29
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          30,
          31
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "restaurant hall",
            "category": "area",
            "position_hint": "central and front portion of the unified interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "kitchen work zone",
            "category": "area",
            "position_hint": "rear-left portion, directly adjoining the restaurant hall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "elder private room",
            "category": "area",
            "position_hint": "rear-right portion beside the kitchen",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "guest rear room",
            "category": "area",
            "position_hint": "right side of the hall, forward of the elder private room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "retail display zone",
            "category": "area",
            "position_hint": "continuous strip along the left side of the restaurant hall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "front threshold zone",
            "category": "area",
            "position_hint": "south-front edge between the hall and main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "front sliding entrance",
            "category": "opening",
            "position_hint": "center of the south facade at the front threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "elder room sliding door",
            "category": "opening",
            "position_hint": "hall-facing wall of the elder private room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "guest room sliding door",
            "category": "opening",
            "position_hint": "hall-facing wall of the guest rear room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "front lattice window run",
            "category": "opening",
            "position_hint": "south facade beside the front sliding entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "side lattice window run",
            "category": "opening",
            "position_hint": "east wall of the restaurant hall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "main dining table",
            "category": "furniture",
            "position_hint": "central restaurant hall with circulation space on all sides",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "corner dining table",
            "category": "furniture",
            "position_hint": "rear corner of the hall near the private-room doors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "grocery shelving unit",
            "category": "furniture",
            "position_hint": "front half of the retail display zone along the left wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "fishing supplies display rack",
            "category": "furniture",
            "position_hint": "rear half of the retail display zone near the kitchen boundary",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 29,
            "label": "red dusk wash",
            "category": "prop",
            "position_hint": "single patch entering through the front and side facade corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "raw meat meal spread",
            "category": "prop",
            "position_hint": "single contiguous spread on the main dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "goat butchering setup",
            "category": "prop",
            "position_hint": "single preparation spot on the kitchen counter",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "searchers outside entrance",
            "category": "prop",
            "position_hint": "single exterior gathering visible through the front sliding entrance",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "cold moonlight patch",
            "category": "prop",
            "position_hint": "single patch entering through the front lattice window run",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "festival preparation bundles",
            "category": "prop",
            "position_hint": "single grouped preparation spot inside the elder private room",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloodied dining-table traces",
            "category": "prop",
            "position_hint": "single localized area on and beside the main dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L21B01": {
        "bg_id": "L21B01",
        "fp_id": "fp_l21_back_room",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8
        ],
        "ignore_numbered_elements": [
          9,
          10
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "private sleeping zone",
            "category": "area",
            "position_hint": "main central and eastern portion of the back room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "restaurant-side threshold zone",
            "category": "area",
            "position_hint": "narrow strip along the west side beside the sliding door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "exterior alley strip",
            "category": "area",
            "position_hint": "outside the east wall beyond the street-facing window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "sliding door to restaurant",
            "category": "opening",
            "position_hint": "west wall, centered on the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "street-facing window",
            "category": "opening",
            "position_hint": "east wall, opposite the sliding door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "window curtain",
            "category": "prop",
            "position_hint": "interior face of the east wall directly beside the window opening",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "floor sleeping mat",
            "category": "furniture",
            "position_hint": "south-central part of the private sleeping zone, long side parallel to the south wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 8,
            "label": "warm window sun patch",
            "category": "prop",
            "position_hint": "single contiguous patch on the floor immediately west of the street-facing window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 9,
            "label": "first surveillance watcher",
            "category": "prop",
            "position_hint": "exterior alley strip, just northeast of the street-facing window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "second surveillance watcher",
            "category": "prop",
            "position_hint": "exterior alley strip, just southeast of the street-facing window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L21B02": {
        "bg_id": "L21B02",
        "fp_id": "fp_l21_back_room",
        "use_numbered_elements": [
          1,
          3,
          5,
          6,
          7,
          9,
          10
        ],
        "ignore_numbered_elements": [
          8
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "private sleeping zone",
            "category": "area",
            "position_hint": "main central and eastern portion of the back room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "exterior alley strip",
            "category": "area",
            "position_hint": "outside the east wall beyond the street-facing window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "street-facing window",
            "category": "opening",
            "position_hint": "east wall, opposite the sliding door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "window curtain",
            "category": "prop",
            "position_hint": "interior face of the east wall directly beside the window opening",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "floor sleeping mat",
            "category": "furniture",
            "position_hint": "south-central part of the private sleeping zone, long side parallel to the south wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 9,
            "label": "first surveillance watcher",
            "category": "prop",
            "position_hint": "exterior alley strip, just northeast of the street-facing window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "second surveillance watcher",
            "category": "prop",
            "position_hint": "exterior alley strip, just southeast of the street-facing window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 8,
            "label": "warm window sun patch",
            "category": "prop",
            "position_hint": "single contiguous patch on the floor immediately west of the street-facing window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L32B01": {
        "bg_id": "L32B01",
        "fp_id": "fp_l32_ritual_warehouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main storage chamber",
            "category": "area",
            "position_hint": "central and southern portion of the warehouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rear service bay",
            "category": "area",
            "position_hint": "shallow bay spanning the north end of the warehouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "small rectangular zone immediately inside the south doorway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "built-in storage shelf",
            "category": "furniture",
            "position_hint": "single contiguous shelf run along the west wall of the main chamber",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "warehouse doorway",
            "category": "opening",
            "position_hint": "south wall, slightly east of center",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 6,
            "label": "low altar table",
            "category": "furniture",
            "position_hint": "center of the rear service bay against the north wall",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "candle field",
            "category": "prop",
            "position_hint": "one contiguous candle cluster on the floor before the altar table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "goat head",
            "category": "prop",
            "position_hint": "center of the altar tabletop",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "blood bowl",
            "category": "prop",
            "position_hint": "front edge of the altar tabletop, directly south of the goat head",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "incense burner",
            "category": "prop",
            "position_hint": "west side of the altar tabletop",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "ancient spear",
            "category": "prop",
            "position_hint": "laid horizontally along the rear edge of the altar above the goat head",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "lurking hanging silhouette",
            "category": "prop",
            "position_hint": "southeast wall-ceiling corner, behind and above an entrant",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "northwest hanging ritual bundle",
            "category": "prop",
            "position_hint": "northwest wall-ceiling corner above the altar area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "northeast hanging ritual bundle",
            "category": "prop",
            "position_hint": "northeast wall-ceiling corner above the altar area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L29B02": {
        "bg_id": "L29B02",
        "fp_id": "fp_cave_entrance",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "forest approach zone",
            "category": "area",
            "position_hint": "south half of plan, outside the cave entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "cave threshold zone",
            "category": "area",
            "position_hint": "central narrow zone immediately beneath the timber frame",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "immediate cave interior",
            "category": "area",
            "position_hint": "north half of plan beyond the cave mouth",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "natural cave mouth",
            "category": "opening",
            "position_hint": "center of the irregular rock boundary between threshold and cave interior",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "left timber upright",
            "category": "prop",
            "position_hint": "west side of the cave mouth, immediately inside the left rock flank",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "right timber upright",
            "category": "prop",
            "position_hint": "east side of the cave mouth, immediately inside the right rock flank",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "timber overhead beam",
            "category": "prop",
            "position_hint": "across the cave mouth between the two upright supports",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "left rock flank",
            "category": "area",
            "position_hint": "west side of the cave mouth, separating forest approach from cave interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "right rock flank",
            "category": "area",
            "position_hint": "east side of the cave mouth, separating forest approach from cave interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          8,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 8, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L29B01": {
        "bg_id": "L29B01",
        "fp_id": "fp_cave_entrance",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "forest approach zone",
            "category": "area",
            "position_hint": "south half of plan, outside the cave entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "cave threshold zone",
            "category": "area",
            "position_hint": "central narrow zone immediately beneath the timber frame",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "immediate cave interior",
            "category": "area",
            "position_hint": "north half of plan beyond the cave mouth",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "natural cave mouth",
            "category": "opening",
            "position_hint": "center of the irregular rock boundary between threshold and cave interior",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "left timber upright",
            "category": "prop",
            "position_hint": "west side of the cave mouth, immediately inside the left rock flank",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "right timber upright",
            "category": "prop",
            "position_hint": "east side of the cave mouth, immediately inside the right rock flank",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "timber overhead beam",
            "category": "prop",
            "position_hint": "across the cave mouth between the two upright supports",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "left rock flank",
            "category": "area",
            "position_hint": "west side of the cave mouth, separating forest approach from cave interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "right rock flank",
            "category": "area",
            "position_hint": "east side of the cave mouth, separating forest approach from cave interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          8,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 8, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L30B08": {
        "bg_id": "L30B08",
        "fp_id": "fp_cave_interior",
        "use_numbered_elements": [
          4,
          7,
          8,
          9,
          10
        ],
        "ignore_numbered_elements": [
          11,
          12,
          13,
          14,
          15,
          16,
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 4,
            "label": "Captivity chamber",
            "category": "area",
            "position_hint": "deep north end of the continuous cave interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Inner chamber opening",
            "category": "opening",
            "position_hint": "between the intermediate chamber and captivity chamber",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "West wall chain anchor",
            "category": "prop",
            "position_hint": "west wall of the captivity chamber",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "East wall chain anchor",
            "category": "prop",
            "position_hint": "east wall of the captivity chamber opposite number 8",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Low bare ceiling bulb",
            "category": "prop",
            "position_hint": "over the central floor of the captivity chamber",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "Scattered human bones",
            "category": "prop",
            "position_hint": "floor of the intermediate chamber and approach to the inner opening",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Wet blood pools",
            "category": "prop",
            "position_hint": "irregular floor depressions in the deep chamber near the captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Blood wall splatter",
            "category": "prop",
            "position_hint": "single contiguous wall patch beside the deep captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Severed loose chain",
            "category": "prop",
            "position_hint": "rough floor directly below the west wall chain anchor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Failing handheld flashlight",
            "category": "prop",
            "position_hint": "carried through the winding passage and deep chamber approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Handheld lantern",
            "category": "prop",
            "position_hint": "near the inner chamber opening during daytime entry",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Handheld torches",
            "category": "prop",
            "position_hint": "near the vacated west corner of the captivity chamber",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          4
        ],
        "dominant_target_unit_marker_number": 4,
        "clean_background_expected": true,
        "diagnostics": []
      },
      "L30B07": {
        "bg_id": "L30B07",
        "fp_id": "fp_cave_interior",
        "use_numbered_elements": [
          2,
          3,
          6,
          11,
          15
        ],
        "ignore_numbered_elements": [
          12,
          13,
          14,
          16,
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "Winding cave passage",
            "category": "area",
            "position_hint": "between the entrance threshold and the first deep chamber",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Intermediate cave chamber",
            "category": "area",
            "position_hint": "central deep section beyond the winding passage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "First constricted opening",
            "category": "opening",
            "position_hint": "between the winding passage and intermediate chamber",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "Scattered human bones",
            "category": "prop",
            "position_hint": "floor of the intermediate chamber and approach to the inner opening",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Failing handheld flashlight",
            "category": "prop",
            "position_hint": "carried through the winding passage and deep chamber approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "Wet blood pools",
            "category": "prop",
            "position_hint": "irregular floor depressions in the deep chamber near the captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Blood wall splatter",
            "category": "prop",
            "position_hint": "single contiguous wall patch beside the deep captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Severed loose chain",
            "category": "prop",
            "position_hint": "rough floor directly below the west wall chain anchor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Handheld lantern",
            "category": "prop",
            "position_hint": "near the inner chamber opening during daytime entry",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Handheld torches",
            "category": "prop",
            "position_hint": "near the vacated west corner of the captivity chamber",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L30B06": {
        "bg_id": "L30B06",
        "fp_id": "fp_cave_interior",
        "use_numbered_elements": [
          3,
          4,
          6,
          7,
          8,
          11,
          12,
          13,
          15
        ],
        "ignore_numbered_elements": [
          14,
          16,
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 3,
            "label": "Intermediate cave chamber",
            "category": "area",
            "position_hint": "central deep section beyond the winding passage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Captivity chamber",
            "category": "area",
            "position_hint": "deep north end of the continuous cave interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "First constricted opening",
            "category": "opening",
            "position_hint": "between the winding passage and intermediate chamber",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Inner chamber opening",
            "category": "opening",
            "position_hint": "between the intermediate chamber and captivity chamber",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "West wall chain anchor",
            "category": "prop",
            "position_hint": "west wall of the captivity chamber",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "Scattered human bones",
            "category": "prop",
            "position_hint": "floor of the intermediate chamber and approach to the inner opening",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Wet blood pools",
            "category": "prop",
            "position_hint": "irregular floor depressions in the deep chamber near the captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Blood wall splatter",
            "category": "prop",
            "position_hint": "single contiguous wall patch beside the deep captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Failing handheld flashlight",
            "category": "prop",
            "position_hint": "carried through the winding passage and deep chamber approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 14,
            "label": "Severed loose chain",
            "category": "prop",
            "position_hint": "rough floor directly below the west wall chain anchor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Handheld lantern",
            "category": "prop",
            "position_hint": "near the inner chamber opening during daytime entry",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Handheld torches",
            "category": "prop",
            "position_hint": "near the vacated west corner of the captivity chamber",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L30B09": {
        "bg_id": "L30B09",
        "fp_id": "fp_cave_interior",
        "use_numbered_elements": [
          4,
          7,
          8,
          9,
          14,
          17
        ],
        "ignore_numbered_elements": [
          11,
          12,
          13,
          15,
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 4,
            "label": "Captivity chamber",
            "category": "area",
            "position_hint": "deep north end of the continuous cave interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Inner chamber opening",
            "category": "opening",
            "position_hint": "between the intermediate chamber and captivity chamber",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "West wall chain anchor",
            "category": "prop",
            "position_hint": "west wall of the captivity chamber",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "East wall chain anchor",
            "category": "prop",
            "position_hint": "east wall of the captivity chamber opposite number 8",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "Severed loose chain",
            "category": "prop",
            "position_hint": "rough floor directly below the west wall chain anchor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Handheld torches",
            "category": "prop",
            "position_hint": "near the vacated west corner of the captivity chamber",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "Scattered human bones",
            "category": "prop",
            "position_hint": "floor of the intermediate chamber and approach to the inner opening",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Wet blood pools",
            "category": "prop",
            "position_hint": "irregular floor depressions in the deep chamber near the captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Blood wall splatter",
            "category": "prop",
            "position_hint": "single contiguous wall patch beside the deep captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Failing handheld flashlight",
            "category": "prop",
            "position_hint": "carried through the winding passage and deep chamber approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Handheld lantern",
            "category": "prop",
            "position_hint": "near the inner chamber opening during daytime entry",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          4
        ],
        "dominant_target_unit_marker_number": 4,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L30B03": {
        "bg_id": "L30B03",
        "fp_id": "fp_cave_interior",
        "use_numbered_elements": [
          4,
          7,
          8,
          9,
          10
        ],
        "ignore_numbered_elements": [
          11,
          12,
          13,
          14,
          15,
          16,
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 4,
            "label": "Captivity chamber",
            "category": "area",
            "position_hint": "deep north end of the continuous cave interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Inner chamber opening",
            "category": "opening",
            "position_hint": "between the intermediate chamber and captivity chamber",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "West wall chain anchor",
            "category": "prop",
            "position_hint": "west wall of the captivity chamber",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "East wall chain anchor",
            "category": "prop",
            "position_hint": "east wall of the captivity chamber opposite number 8",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Low bare ceiling bulb",
            "category": "prop",
            "position_hint": "over the central floor of the captivity chamber",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "Scattered human bones",
            "category": "prop",
            "position_hint": "floor of the intermediate chamber and approach to the inner opening",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Wet blood pools",
            "category": "prop",
            "position_hint": "irregular floor depressions in the deep chamber near the captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Blood wall splatter",
            "category": "prop",
            "position_hint": "single contiguous wall patch beside the deep captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Severed loose chain",
            "category": "prop",
            "position_hint": "rough floor directly below the west wall chain anchor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Failing handheld flashlight",
            "category": "prop",
            "position_hint": "carried through the winding passage and deep chamber approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Handheld lantern",
            "category": "prop",
            "position_hint": "near the inner chamber opening during daytime entry",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Handheld torches",
            "category": "prop",
            "position_hint": "near the vacated west corner of the captivity chamber",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          4
        ],
        "dominant_target_unit_marker_number": 4,
        "clean_background_expected": true,
        "diagnostics": []
      },
      "L30B01": {
        "bg_id": "L30B01",
        "fp_id": "fp_cave_interior",
        "use_numbered_elements": [
          4,
          7,
          8,
          9,
          10,
          16
        ],
        "ignore_numbered_elements": [
          11,
          12,
          13,
          14,
          15,
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 4,
            "label": "Captivity chamber",
            "category": "area",
            "position_hint": "deep north end of the continuous cave interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Inner chamber opening",
            "category": "opening",
            "position_hint": "between the intermediate chamber and captivity chamber",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "West wall chain anchor",
            "category": "prop",
            "position_hint": "west wall of the captivity chamber",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "East wall chain anchor",
            "category": "prop",
            "position_hint": "east wall of the captivity chamber opposite number 8",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Low bare ceiling bulb",
            "category": "prop",
            "position_hint": "over the central floor of the captivity chamber",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 16,
            "label": "Handheld lantern",
            "category": "prop",
            "position_hint": "near the inner chamber opening during daytime entry",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "Scattered human bones",
            "category": "prop",
            "position_hint": "floor of the intermediate chamber and approach to the inner opening",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Wet blood pools",
            "category": "prop",
            "position_hint": "irregular floor depressions in the deep chamber near the captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Blood wall splatter",
            "category": "prop",
            "position_hint": "single contiguous wall patch beside the deep captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Severed loose chain",
            "category": "prop",
            "position_hint": "rough floor directly below the west wall chain anchor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Failing handheld flashlight",
            "category": "prop",
            "position_hint": "carried through the winding passage and deep chamber approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Handheld torches",
            "category": "prop",
            "position_hint": "near the vacated west corner of the captivity chamber",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          4
        ],
        "dominant_target_unit_marker_number": 4,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L30B02": {
        "bg_id": "L30B02",
        "fp_id": "fp_cave_interior",
        "use_numbered_elements": [
          4,
          7,
          8,
          9,
          10
        ],
        "ignore_numbered_elements": [
          11,
          12,
          13,
          14,
          15,
          16,
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 4,
            "label": "Captivity chamber",
            "category": "area",
            "position_hint": "deep north end of the continuous cave interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Inner chamber opening",
            "category": "opening",
            "position_hint": "between the intermediate chamber and captivity chamber",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "West wall chain anchor",
            "category": "prop",
            "position_hint": "west wall of the captivity chamber",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "East wall chain anchor",
            "category": "prop",
            "position_hint": "east wall of the captivity chamber opposite number 8",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Low bare ceiling bulb",
            "category": "prop",
            "position_hint": "over the central floor of the captivity chamber",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "Scattered human bones",
            "category": "prop",
            "position_hint": "floor of the intermediate chamber and approach to the inner opening",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Wet blood pools",
            "category": "prop",
            "position_hint": "irregular floor depressions in the deep chamber near the captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Blood wall splatter",
            "category": "prop",
            "position_hint": "single contiguous wall patch beside the deep captive corner",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Severed loose chain",
            "category": "prop",
            "position_hint": "rough floor directly below the west wall chain anchor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Failing handheld flashlight",
            "category": "prop",
            "position_hint": "carried through the winding passage and deep chamber approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Handheld lantern",
            "category": "prop",
            "position_hint": "near the inner chamber opening during daytime entry",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Handheld torches",
            "category": "prop",
            "position_hint": "near the vacated west corner of the captivity chamber",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          4
        ],
        "dominant_target_unit_marker_number": 4,
        "clean_background_expected": true,
        "diagnostics": []
      },
      "L37B03": {
        "bg_id": "L37B03",
        "fp_id": "fp_slaughterhouse_interior",
        "use_numbered_elements": [
          1,
          3,
          4,
          5,
          6,
          8,
          9,
          10,
          11,
          12,
          14,
          15,
          16,
          17
        ],
        "ignore_numbered_elements": [
          13,
          18,
          19
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared work floor",
            "category": "area",
            "position_hint": "large central and western portion of the shed interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "slaughter service bay",
            "category": "area",
            "position_hint": "narrow service strip along the north wall beside the storage room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "small interior zone immediately inside the south-wall entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "main entrance door",
            "category": "opening",
            "position_hint": "south wall at the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "broken viewing window",
            "category": "opening",
            "position_hint": "west wall overlooking the shared work floor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "slaughter table",
            "category": "furniture",
            "position_hint": "center of the north service bay, accessible from the shared work floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "wall-mounted knife rack",
            "category": "prop",
            "position_hint": "single contiguous run on the north wall above the slaughter service bay",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "hanging-hook rail",
            "category": "prop",
            "position_hint": "single contiguous ceiling or high-wall run at the east end of the service bay",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "blood-catch bucket station",
            "category": "prop",
            "position_hint": "floor position directly below the hanging-hook rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "filled blood-soaked sack pile",
            "category": "prop",
            "position_hint": "single pile near the storage doorway and storage-room floor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "fresh floor blood patch",
            "category": "area",
            "position_hint": "one contiguous patch on the shared work floor beside the slaughter table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "fresh wall blood splatter",
            "category": "area",
            "position_hint": "one contiguous patch of the north service wall near the knife rack",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "active execution site",
            "category": "area",
            "position_hint": "open shared-floor position directly in front of the slaughter table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "blood-filled bucket and spill",
            "category": "prop",
            "position_hint": "single bucket-and-spill location at the blood-catch station",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "dismembered human remains",
            "category": "prop",
            "position_hint": "single spill site immediately beside the sack pile inside the storage threshold",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "ceiling-clinging intruder",
            "category": "prop",
            "position_hint": "ceiling position directly above the storage-room hiding corner",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "descending blood drip",
            "category": "prop",
            "position_hint": "single vertical drip point beneath the ceiling-clinging intruder",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L37B01": {
        "bg_id": "L37B01",
        "fp_id": "fp_slaughterhouse_interior",
        "use_numbered_elements": [
          1,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [
          12,
          13,
          17,
          18,
          19
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared work floor",
            "category": "area",
            "position_hint": "large central and western portion of the shed interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "slaughter service bay",
            "category": "area",
            "position_hint": "narrow service strip along the north wall beside the storage room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "small interior zone immediately inside the south-wall entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "main entrance door",
            "category": "opening",
            "position_hint": "south wall at the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "broken viewing window",
            "category": "opening",
            "position_hint": "west wall overlooking the shared work floor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "storage side door",
            "category": "opening",
            "position_hint": "west wall of the storage room, opening from the shared work floor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "slaughter table",
            "category": "furniture",
            "position_hint": "center of the north service bay, accessible from the shared work floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "wall-mounted knife rack",
            "category": "prop",
            "position_hint": "single contiguous run on the north wall above the slaughter service bay",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "hanging-hook rail",
            "category": "prop",
            "position_hint": "single contiguous ceiling or high-wall run at the east end of the service bay",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "blood-catch bucket station",
            "category": "prop",
            "position_hint": "floor position directly below the hanging-hook rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "fresh floor blood patch",
            "category": "area",
            "position_hint": "one contiguous patch on the shared work floor beside the slaughter table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "fresh wall blood splatter",
            "category": "area",
            "position_hint": "one contiguous patch of the north service wall near the knife rack",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "active execution site",
            "category": "area",
            "position_hint": "open shared-floor position directly in front of the slaughter table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "filled blood-soaked sack pile",
            "category": "prop",
            "position_hint": "single pile near the storage doorway and storage-room floor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "dismembered human remains",
            "category": "prop",
            "position_hint": "single spill site immediately beside the sack pile inside the storage threshold",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "blood-filled bucket and spill",
            "category": "prop",
            "position_hint": "single bucket-and-spill location at the blood-catch station",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "ceiling-clinging intruder",
            "category": "prop",
            "position_hint": "ceiling position directly above the storage-room hiding corner",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "descending blood drip",
            "category": "prop",
            "position_hint": "single vertical drip point beneath the ceiling-clinging intruder",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L37B02": {
        "bg_id": "L37B02",
        "fp_id": "fp_slaughterhouse_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          6,
          7,
          8,
          9,
          10,
          12,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [
          16,
          17,
          18,
          19
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared work floor",
            "category": "area",
            "position_hint": "large central and western portion of the shed interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "storage room",
            "category": "area",
            "position_hint": "enclosed northeast corner of the shed",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "slaughter service bay",
            "category": "area",
            "position_hint": "narrow service strip along the north wall beside the storage room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "broken viewing window",
            "category": "opening",
            "position_hint": "west wall overlooking the shared work floor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "storage side door",
            "category": "opening",
            "position_hint": "west wall of the storage room, opening from the shared work floor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "slaughter table",
            "category": "furniture",
            "position_hint": "center of the north service bay, accessible from the shared work floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "wall-mounted knife rack",
            "category": "prop",
            "position_hint": "single contiguous run on the north wall above the slaughter service bay",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "hanging-hook rail",
            "category": "prop",
            "position_hint": "single contiguous ceiling or high-wall run at the east end of the service bay",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "filled blood-soaked sack pile",
            "category": "prop",
            "position_hint": "single pile near the storage doorway and storage-room floor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "dismembered human remains",
            "category": "prop",
            "position_hint": "single spill site immediately beside the sack pile inside the storage threshold",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "fresh floor blood patch",
            "category": "area",
            "position_hint": "one contiguous patch on the shared work floor beside the slaughter table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "fresh wall blood splatter",
            "category": "area",
            "position_hint": "one contiguous patch of the north service wall near the knife rack",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 16,
            "label": "active execution site",
            "category": "area",
            "position_hint": "open shared-floor position directly in front of the slaughter table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "blood-filled bucket and spill",
            "category": "prop",
            "position_hint": "single bucket-and-spill location at the blood-catch station",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "ceiling-clinging intruder",
            "category": "prop",
            "position_hint": "ceiling position directly above the storage-room hiding corner",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "descending blood drip",
            "category": "prop",
            "position_hint": "single vertical drip point beneath the ceiling-clinging intruder",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L37B04": {
        "bg_id": "L37B04",
        "fp_id": "fp_slaughterhouse_interior",
        "use_numbered_elements": [
          2,
          7,
          18,
          19
        ],
        "ignore_numbered_elements": [
          12,
          13,
          14,
          15,
          16,
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "storage room",
            "category": "area",
            "position_hint": "enclosed northeast corner of the shed",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "storage side door",
            "category": "opening",
            "position_hint": "west wall of the storage room, opening from the shared work floor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 18,
            "label": "ceiling-clinging intruder",
            "category": "prop",
            "position_hint": "ceiling position directly above the storage-room hiding corner",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "descending blood drip",
            "category": "prop",
            "position_hint": "single vertical drip point beneath the ceiling-clinging intruder",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "filled blood-soaked sack pile",
            "category": "prop",
            "position_hint": "single pile near the storage doorway and storage-room floor",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "dismembered human remains",
            "category": "prop",
            "position_hint": "single spill site immediately beside the sack pile inside the storage threshold",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "fresh floor blood patch",
            "category": "area",
            "position_hint": "one contiguous patch on the shared work floor beside the slaughter table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "fresh wall blood splatter",
            "category": "area",
            "position_hint": "one contiguous patch of the north service wall near the knife rack",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "active execution site",
            "category": "area",
            "position_hint": "open shared-floor position directly in front of the slaughter table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "blood-filled bucket and spill",
            "category": "prop",
            "position_hint": "single bucket-and-spill location at the blood-catch station",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2
        ],
        "dominant_target_unit_marker_number": 2,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L45B02": {
        "bg_id": "L45B02",
        "fp_id": "fp_l45_patrol_boat_deck",
        "use_numbered_elements": [
          2,
          4,
          5,
          8,
          11,
          14,
          19,
          20,
          21,
          22,
          23
        ],
        "ignore_numbered_elements": [
          24,
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "port side passage",
            "category": "area",
            "position_hint": "narrow passage along the port side of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "stern deck",
            "category": "area",
            "position_hint": "broad open deck aft of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "wheelhouse",
            "category": "area",
            "position_hint": "enclosed rectangular footprint slightly forward of midships",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "port aft rail run",
            "category": "prop",
            "position_hint": "port edge between the port boarding gate and stern rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "stern rail run",
            "category": "prop",
            "position_hint": "single contiguous rail across the aft edge of the stern deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "wheelhouse aft door",
            "category": "opening",
            "position_hint": "center of the wheelhouse aft wall facing the stern deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "aft bench",
            "category": "furniture",
            "position_hint": "stern deck against the aft face of the wheelhouse, offset to starboard",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "rescue ring rack",
            "category": "prop",
            "position_hint": "stern deck beside the port aft rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "engine access hatch",
            "category": "prop",
            "position_hint": "flush rectangular hatch near the center of the stern deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 22,
            "label": "corpse on stern deck",
            "category": "prop",
            "position_hint": "open stern deck near the engine access hatch",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "looted personal effects",
            "category": "prop",
            "position_hint": "single compact cluster immediately beside the corpse on the stern deck",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 24,
            "label": "fishing boat alongside",
            "category": "prop",
            "position_hint": "water directly outboard of the port boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "body crossing boarding gap",
            "category": "prop",
            "position_hint": "single transfer position spanning the narrow gap at the port boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "transformed boarder at bow rail",
            "category": "prop",
            "position_hint": "bow edge immediately inboard of the bow rail",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "armed hijacker at helm",
            "category": "prop",
            "position_hint": "inside the wheelhouse at the helm console",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "knocked-away handgun",
            "category": "prop",
            "position_hint": "single spot on the forward starboard side passage",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "thrown flotation gear pile",
            "category": "prop",
            "position_hint": "single compact pile at the stern end of the port side passage",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "sea foam after fall",
            "category": "prop",
            "position_hint": "water immediately outboard of the starboard aft rail",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "grieving survivors at stern",
            "category": "prop",
            "position_hint": "single close group at the center of the stern rail",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "hostile dock gathering",
            "category": "prop",
            "position_hint": "distant dock directly ahead of the bow",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L45B01": {
        "bg_id": "L45B01",
        "fp_id": "fp_l45_patrol_boat_deck",
        "use_numbered_elements": [
          2,
          4,
          7,
          8,
          11,
          12,
          13,
          14,
          20,
          24,
          25
        ],
        "ignore_numbered_elements": [
          22,
          23,
          26,
          27,
          28,
          29,
          30,
          31,
          32
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "port side passage",
            "category": "area",
            "position_hint": "narrow passage along the port side of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "stern deck",
            "category": "area",
            "position_hint": "broad open deck aft of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "port forward rail run",
            "category": "prop",
            "position_hint": "port edge between the bow rail and port boarding gate",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "port aft rail run",
            "category": "prop",
            "position_hint": "port edge between the port boarding gate and stern rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "stern rail run",
            "category": "prop",
            "position_hint": "single contiguous rail across the aft edge of the stern deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "port boarding gate",
            "category": "opening",
            "position_hint": "midships opening in the port-side railing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "starboard boarding gate",
            "category": "opening",
            "position_hint": "midships opening in the starboard-side railing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "wheelhouse aft door",
            "category": "opening",
            "position_hint": "center of the wheelhouse aft wall facing the stern deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "rescue ring rack",
            "category": "prop",
            "position_hint": "stern deck beside the port aft rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 24,
            "label": "fishing boat alongside",
            "category": "prop",
            "position_hint": "water directly outboard of the port boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "body crossing boarding gap",
            "category": "prop",
            "position_hint": "single transfer position spanning the narrow gap at the port boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "corpse on stern deck",
            "category": "prop",
            "position_hint": "open stern deck near the engine access hatch",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "looted personal effects",
            "category": "prop",
            "position_hint": "single compact cluster immediately beside the corpse on the stern deck",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "transformed boarder at bow rail",
            "category": "prop",
            "position_hint": "bow edge immediately inboard of the bow rail",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "armed hijacker at helm",
            "category": "prop",
            "position_hint": "inside the wheelhouse at the helm console",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "knocked-away handgun",
            "category": "prop",
            "position_hint": "single spot on the forward starboard side passage",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "thrown flotation gear pile",
            "category": "prop",
            "position_hint": "single compact pile at the stern end of the port side passage",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "sea foam after fall",
            "category": "prop",
            "position_hint": "water immediately outboard of the starboard aft rail",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "grieving survivors at stern",
            "category": "prop",
            "position_hint": "single close group at the center of the stern rail",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "hostile dock gathering",
            "category": "prop",
            "position_hint": "distant dock directly ahead of the bow",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L45B05": {
        "bg_id": "L45B05",
        "fp_id": "fp_l45_patrol_boat_deck",
        "use_numbered_elements": [
          4,
          5,
          8,
          10,
          11,
          14,
          19,
          20,
          21,
          31
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          27,
          28,
          29,
          30,
          32
        ],
        "base_markers_to_reference": [
          {
            "number": 4,
            "label": "stern deck",
            "category": "area",
            "position_hint": "broad open deck aft of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "wheelhouse",
            "category": "area",
            "position_hint": "enclosed rectangular footprint slightly forward of midships",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "port aft rail run",
            "category": "prop",
            "position_hint": "port edge between the port boarding gate and stern rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "starboard aft rail run",
            "category": "prop",
            "position_hint": "starboard edge between the starboard boarding gate and stern rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "stern rail run",
            "category": "prop",
            "position_hint": "single contiguous rail across the aft edge of the stern deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "wheelhouse aft door",
            "category": "opening",
            "position_hint": "center of the wheelhouse aft wall facing the stern deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "aft bench",
            "category": "furniture",
            "position_hint": "stern deck against the aft face of the wheelhouse, offset to starboard",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "rescue ring rack",
            "category": "prop",
            "position_hint": "stern deck beside the port aft rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "engine access hatch",
            "category": "prop",
            "position_hint": "flush rectangular hatch near the center of the stern deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 31,
            "label": "grieving survivors at stern",
            "category": "prop",
            "position_hint": "single close group at the center of the stern rail",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "corpse on stern deck",
            "category": "prop",
            "position_hint": "open stern deck near the engine access hatch",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "looted personal effects",
            "category": "prop",
            "position_hint": "single compact cluster immediately beside the corpse on the stern deck",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "fishing boat alongside",
            "category": "prop",
            "position_hint": "water directly outboard of the port boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "body crossing boarding gap",
            "category": "prop",
            "position_hint": "single transfer position spanning the narrow gap at the port boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "transformed boarder at bow rail",
            "category": "prop",
            "position_hint": "bow edge immediately inboard of the bow rail",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "armed hijacker at helm",
            "category": "prop",
            "position_hint": "inside the wheelhouse at the helm console",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "knocked-away handgun",
            "category": "prop",
            "position_hint": "single spot on the forward starboard side passage",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "thrown flotation gear pile",
            "category": "prop",
            "position_hint": "single compact pile at the stern end of the port side passage",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "sea foam after fall",
            "category": "prop",
            "position_hint": "water immediately outboard of the starboard aft rail",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "hostile dock gathering",
            "category": "prop",
            "position_hint": "distant dock directly ahead of the bow",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L45B04": {
        "bg_id": "L45B04",
        "fp_id": "fp_l45_patrol_boat_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          20,
          21,
          26,
          27,
          28,
          29,
          30
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          31,
          32
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "bow deck",
            "category": "area",
            "position_hint": "forward open deck ahead of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "port side passage",
            "category": "area",
            "position_hint": "narrow passage along the port side of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "starboard side passage",
            "category": "area",
            "position_hint": "narrow passage along the starboard side of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "stern deck",
            "category": "area",
            "position_hint": "broad open deck aft of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "wheelhouse",
            "category": "area",
            "position_hint": "enclosed rectangular footprint slightly forward of midships",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bow rail run",
            "category": "prop",
            "position_hint": "single curved contiguous rail across the forward bow edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "port forward rail run",
            "category": "prop",
            "position_hint": "port edge between the bow rail and port boarding gate",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "port aft rail run",
            "category": "prop",
            "position_hint": "port edge between the port boarding gate and stern rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "starboard forward rail run",
            "category": "prop",
            "position_hint": "starboard edge between the bow rail and starboard boarding gate",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "starboard aft rail run",
            "category": "prop",
            "position_hint": "starboard edge between the starboard boarding gate and stern rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "stern rail run",
            "category": "prop",
            "position_hint": "single contiguous rail across the aft edge of the stern deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "port boarding gate",
            "category": "opening",
            "position_hint": "midships opening in the port-side railing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "starboard boarding gate",
            "category": "opening",
            "position_hint": "midships opening in the starboard-side railing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "wheelhouse aft door",
            "category": "opening",
            "position_hint": "center of the wheelhouse aft wall facing the stern deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "front windshield run",
            "category": "opening",
            "position_hint": "single contiguous window run across the forward wheelhouse wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "port wheelhouse window",
            "category": "opening",
            "position_hint": "single window run in the port wheelhouse wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "starboard wheelhouse window",
            "category": "opening",
            "position_hint": "single window run in the starboard wheelhouse wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "helm console",
            "category": "furniture",
            "position_hint": "inside the wheelhouse against the forward wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "aft bench",
            "category": "furniture",
            "position_hint": "stern deck against the aft face of the wheelhouse, offset to starboard",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "rescue ring rack",
            "category": "prop",
            "position_hint": "stern deck beside the port aft rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "engine access hatch",
            "category": "prop",
            "position_hint": "flush rectangular hatch near the center of the stern deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 26,
            "label": "transformed boarder at bow rail",
            "category": "prop",
            "position_hint": "bow edge immediately inboard of the bow rail",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "armed hijacker at helm",
            "category": "prop",
            "position_hint": "inside the wheelhouse at the helm console",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "knocked-away handgun",
            "category": "prop",
            "position_hint": "single spot on the forward starboard side passage",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "thrown flotation gear pile",
            "category": "prop",
            "position_hint": "single compact pile at the stern end of the port side passage",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "sea foam after fall",
            "category": "prop",
            "position_hint": "water immediately outboard of the starboard aft rail",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "corpse on stern deck",
            "category": "prop",
            "position_hint": "open stern deck near the engine access hatch",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "looted personal effects",
            "category": "prop",
            "position_hint": "single compact cluster immediately beside the corpse on the stern deck",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "fishing boat alongside",
            "category": "prop",
            "position_hint": "water directly outboard of the port boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "body crossing boarding gap",
            "category": "prop",
            "position_hint": "single transfer position spanning the narrow gap at the port boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "grieving survivors at stern",
            "category": "prop",
            "position_hint": "single close group at the center of the stern rail",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "hostile dock gathering",
            "category": "prop",
            "position_hint": "distant dock directly ahead of the bow",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L45B03": {
        "bg_id": "L45B03",
        "fp_id": "fp_l45_patrol_boat_deck",
        "use_numbered_elements": [
          1,
          5,
          6,
          15,
          16,
          17,
          18,
          27,
          32
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          28,
          29,
          30,
          31
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "bow deck",
            "category": "area",
            "position_hint": "forward open deck ahead of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "wheelhouse",
            "category": "area",
            "position_hint": "enclosed rectangular footprint slightly forward of midships",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bow rail run",
            "category": "prop",
            "position_hint": "single curved contiguous rail across the forward bow edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "front windshield run",
            "category": "opening",
            "position_hint": "single contiguous window run across the forward wheelhouse wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "port wheelhouse window",
            "category": "opening",
            "position_hint": "single window run in the port wheelhouse wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "starboard wheelhouse window",
            "category": "opening",
            "position_hint": "single window run in the starboard wheelhouse wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "helm console",
            "category": "furniture",
            "position_hint": "inside the wheelhouse against the forward wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 27,
            "label": "armed hijacker at helm",
            "category": "prop",
            "position_hint": "inside the wheelhouse at the helm console",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "hostile dock gathering",
            "category": "prop",
            "position_hint": "distant dock directly ahead of the bow",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "corpse on stern deck",
            "category": "prop",
            "position_hint": "open stern deck near the engine access hatch",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "looted personal effects",
            "category": "prop",
            "position_hint": "single compact cluster immediately beside the corpse on the stern deck",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "fishing boat alongside",
            "category": "prop",
            "position_hint": "water directly outboard of the port boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "body crossing boarding gap",
            "category": "prop",
            "position_hint": "single transfer position spanning the narrow gap at the port boarding gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "transformed boarder at bow rail",
            "category": "prop",
            "position_hint": "bow edge immediately inboard of the bow rail",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "knocked-away handgun",
            "category": "prop",
            "position_hint": "single spot on the forward starboard side passage",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "thrown flotation gear pile",
            "category": "prop",
            "position_hint": "single compact pile at the stern end of the port side passage",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "sea foam after fall",
            "category": "prop",
            "position_hint": "water immediately outboard of the starboard aft rail",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "grieving survivors at stern",
            "category": "prop",
            "position_hint": "single close group at the center of the stern rail",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "e4b3db04-dcc0-4039-a6e2-5a7213393a5b",
  "resolved_model": "gpt",
  "updated_at": "2026-07-28T13:16:23.671685+00:00",
  "project_config_snapshot": {}
}