{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "87859d7fae867cc1",
  "data": {
    "overlays": {
      "L04B03": {
        "bg_id": "L04B03",
        "fp_id": "fp_l04_rooftop_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          15
        ],
        "ignore_numbered_elements": [
          13,
          14
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open roof deck",
            "category": "area",
            "position_hint": "central and western portion of the rooftop exterior, largest pale gray exterior zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room block",
            "category": "area",
            "position_hint": "north-east side of the roof, compact rectangular enclosed room footprint in pale blue",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance threshold strip",
            "category": "area",
            "position_hint": "directly outside the iron door on the west face of the rooftop room, pale beige threshold zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "stair landing access",
            "category": "opening",
            "position_hint": "south-west corner of the roof deck, small rooftop stair exit or stairhead opening",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "west-facing wall of the rooftop room, opening onto the threshold strip",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "small room window",
            "category": "opening",
            "position_hint": "west-facing wall of the rooftop room, beside the iron entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "north-west utility corner of the roof deck, within a pale cyan utility patch",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "clothesline",
            "category": "prop",
            "position_hint": "stretched across the open roof deck between simple posts, from west side toward the rooftop room side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "south-east area of the open roof deck, near but not blocking the room door and window",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "flyer wedged at door crack",
            "category": "prop",
            "position_hint": "at number 5, in the crack of the iron entrance door during the forced-entry night state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "forced door latch state",
            "category": "opening",
            "position_hint": "at number 5, indicating the iron door has been forced and left slightly ajar in the night state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "attack silhouette reflection",
            "category": "prop",
            "position_hint": "on number 6, visible only as an ambiguous reflection in the small room window during the night state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "windblown dried herb leaves",
            "category": "prop",
            "position_hint": "scattered from number 9 toward number 5 across the open roof deck during the night entry state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "black cat on platform",
            "category": "prop",
            "position_hint": "on or beside number 9, present only in the bluish dawn rooftop state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "lit room glow beyond",
            "category": "prop",
            "position_hint": "seen through number 6 and around number 5 from inside number 2 during the dawn state",
            "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)"
        ]
      },
      "L04B01": {
        "bg_id": "L04B01",
        "fp_id": "fp_l04_rooftop_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          13,
          14
        ],
        "ignore_numbered_elements": [
          10,
          11,
          12,
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open roof deck",
            "category": "area",
            "position_hint": "central and western portion of the rooftop exterior, largest pale gray exterior zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room block",
            "category": "area",
            "position_hint": "north-east side of the roof, compact rectangular enclosed room footprint in pale blue",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance threshold strip",
            "category": "area",
            "position_hint": "directly outside the iron door on the west face of the rooftop room, pale beige threshold zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "stair landing access",
            "category": "opening",
            "position_hint": "south-west corner of the roof deck, small rooftop stair exit or stairhead opening",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "west-facing wall of the rooftop room, opening onto the threshold strip",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "small room window",
            "category": "opening",
            "position_hint": "west-facing wall of the rooftop room, beside the iron entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "north-west utility corner of the roof deck, within a pale cyan utility patch",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "clothesline",
            "category": "prop",
            "position_hint": "stretched across the open roof deck between simple posts, from west side toward the rooftop room side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "south-east area of the open roof deck, near but not blocking the room door and window",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "black cat on platform",
            "category": "prop",
            "position_hint": "on or beside number 9, present only in the bluish dawn rooftop state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "lit room glow beyond",
            "category": "prop",
            "position_hint": "seen through number 6 and around number 5 from inside number 2 during the dawn state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 10,
            "label": "flyer wedged at door crack",
            "category": "prop",
            "position_hint": "at number 5, in the crack of the iron entrance door during the forced-entry night state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "forced door latch state",
            "category": "opening",
            "position_hint": "at number 5, indicating the iron door has been forced and left slightly ajar in the night state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "attack silhouette reflection",
            "category": "prop",
            "position_hint": "on number 6, visible only as an ambiguous reflection in the small room window during the night state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "windblown dried herb leaves",
            "category": "prop",
            "position_hint": "scattered from number 9 toward number 5 across the open roof deck during the night entry state",
            "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)"
        ]
      },
      "L05B02": {
        "bg_id": "L05B02",
        "fp_id": "fp_l05_stairs",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Exterior stair run",
            "category": "area",
            "position_hint": "southwest edge, rising toward the rooftop landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Rooftop threshold landing",
            "category": "area",
            "position_hint": "small rectangular landing at the top of the stair, outside the unit door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Open rooftop deck",
            "category": "area",
            "position_hint": "north and east of the threshold landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Rooftop unit entrance door",
            "category": "opening",
            "position_hint": "east side of the landing, set into the rooftop unit wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Low roof parapet",
            "category": "area",
            "position_hint": "around the outer perimeter of the rooftop deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Stair and landing railing",
            "category": "prop",
            "position_hint": "outer edge of the stair run and exposed side of the landing",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Rooftop water tank",
            "category": "prop",
            "position_hint": "north corner of the open rooftop deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Clothesline posts",
            "category": "prop",
            "position_hint": "across the open rooftop deck, between parapet edges",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Low drying platform",
            "category": "furniture",
            "position_hint": "on the open rooftop deck near the water tank and clothesline area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "Entrance door left half-open after break-in",
            "category": "opening",
            "position_hint": "same location as number 4, at the rooftop unit threshold",
            "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,
          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)"
        ]
      },
      "L05B01": {
        "bg_id": "L05B01",
        "fp_id": "fp_l05_yard",
        "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": "shared courtyard yard",
            "category": "area",
            "position_hint": "center of the enclosed courtyard, open paved shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop stair access zone",
            "category": "area",
            "position_hint": "northeast portion of the yard beside the building wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "exterior stair flight and lower landing",
            "category": "area",
            "position_hint": "east edge of the courtyard, running from the lower landing toward the rooftop access",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "narrow alley approach",
            "category": "area",
            "position_hint": "west side outside the courtyard gate, aligned with the vehicle entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "small vehicle pull-in bay",
            "category": "area",
            "position_hint": "inside the west side of the courtyard just past the gate",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bicycle parking nook",
            "category": "area",
            "position_hint": "rear corner near the stair base and side wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "courtyard vehicle gate opening",
            "category": "opening",
            "position_hint": "west boundary wall, opening toward the narrow alley",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "ground-floor entrance door",
            "category": "opening",
            "position_hint": "north building facade facing the courtyard",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "ground-floor window",
            "category": "opening",
            "position_hint": "north building facade, left of the entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "utility meter and pipe cluster",
            "category": "prop",
            "position_hint": "east wall near the exterior stair base",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "low perimeter wall",
            "category": "area",
            "position_hint": "south and west edges enclosing the courtyard",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "hurriedly parked bicycle",
            "category": "prop",
            "position_hint": "leaning within number 6, close to the stair access route",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "arriving police car",
            "category": "prop",
            "position_hint": "stopped across number 4 and number 5 near the gate entrance",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "siren color wash",
            "category": "prop",
            "position_hint": "overlay cue spilling across the gate, vehicle bay, and stair base area",
            "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,
          6,
          11
        ],
        "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, 11]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B01": {
        "bg_id": "L06B01",
        "fp_id": "fp_l06_unit_main",
        "use_numbered_elements": [
          1,
          2,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          21,
          22
        ],
        "ignore_numbered_elements": [
          23,
          24,
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Entrance threshold zone",
            "category": "area",
            "position_hint": "west edge of the unit, just inside the steel entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Shared kitchen-living zone",
            "category": "area",
            "position_hint": "central and western half of the unit",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Steel entrance door",
            "category": "opening",
            "position_hint": "west exterior wall opening into the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Small living window",
            "category": "opening",
            "position_hint": "south wall of the shared kitchen-living zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Kitchen sink and faucet",
            "category": "prop",
            "position_hint": "north wall of the shared zone, left side of kitchenette counter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Compact stovetop counter",
            "category": "prop",
            "position_hint": "north wall of the shared zone, beside the sink counter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Dining table with chairs",
            "category": "furniture",
            "position_hint": "center of the shared kitchen-living zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "TV on low cabinet",
            "category": "furniture",
            "position_hint": "south wall of the shared zone, facing the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Main bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared zone opening into the northeast room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Small bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared zone opening into the southeast room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Bathroom door",
            "category": "opening",
            "position_hint": "southwest interior wall between shared zone and bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Living floor lamp",
            "category": "furniture",
            "position_hint": "shared zone corner near the TV and small living window",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 22,
            "label": "Herbal pot, washed herbs, and tea setup",
            "category": "prop",
            "position_hint": "kitchen counter and stovetop near numbers 8 and 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 23,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Bloodstains and bloody footprints leading to curtain",
            "category": "prop",
            "position_hint": "floor of small bedroom number 4, leading toward curtained window number 17",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Body seated by curtain",
            "category": "prop",
            "position_hint": "small bedroom number 4, directly beside curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Crumpled stained old photo",
            "category": "prop",
            "position_hint": "near the body by curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Red circle appearing on small bedroom wall",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "small bedroom floor or chair area near wardrobe number 20",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle vision reflected in bathroom",
            "category": "prop",
            "position_hint": "bathroom wall or mirror area near sink number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Family photo face-melting vision",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Rough red circle with pinned stained photo",
            "category": "prop",
            "position_hint": "small bedroom wall above bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Ransack footprints through shared zone",
            "category": "prop",
            "position_hint": "floor path from entrance number 6 through shared zone number 2 toward small bedroom door number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Living window open state",
            "category": "opening",
            "position_hint": "same location as small living window number 7 on the south wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Overturned chairs and disturbed belongings",
            "category": "furniture",
            "position_hint": "around dining table number 10 and across the shared kitchen-living zone",
            "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)"
        ]
      },
      "L06B06": {
        "bg_id": "L06B06",
        "fp_id": "fp_l06_unit_main",
        "use_numbered_elements": [
          2,
          4,
          10,
          11,
          13,
          16,
          17,
          20,
          21,
          22,
          23,
          24,
          25,
          26,
          27
        ],
        "ignore_numbered_elements": [
          28,
          29,
          30,
          31,
          32,
          33,
          34
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "Shared kitchen-living zone",
            "category": "area",
            "position_hint": "central and western half of the unit",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Small bedroom zone",
            "category": "area",
            "position_hint": "southeast private room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Dining table with chairs",
            "category": "furniture",
            "position_hint": "center of the shared kitchen-living zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "TV on low cabinet",
            "category": "furniture",
            "position_hint": "south wall of the shared zone, facing the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Small bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared zone opening into the southeast room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Small bedroom bed",
            "category": "furniture",
            "position_hint": "inside the small bedroom, set along the south wall with wall space above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Small bedroom curtained window",
            "category": "opening",
            "position_hint": "east wall of the small bedroom, behind curtain symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Small bedroom storage wardrobe",
            "category": "furniture",
            "position_hint": "small bedroom wall opposite the bed",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Living floor lamp",
            "category": "furniture",
            "position_hint": "shared zone corner near the TV and small living window",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 22,
            "label": "Herbal pot, washed herbs, and tea setup",
            "category": "prop",
            "position_hint": "kitchen counter and stovetop near numbers 8 and 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Bloodstains and bloody footprints leading to curtain",
            "category": "prop",
            "position_hint": "floor of small bedroom number 4, leading toward curtained window number 17",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Body seated by curtain",
            "category": "prop",
            "position_hint": "small bedroom number 4, directly beside curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Crumpled stained old photo",
            "category": "prop",
            "position_hint": "near the body by curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Red circle appearing on small bedroom wall",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 28,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "small bedroom floor or chair area near wardrobe number 20",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle vision reflected in bathroom",
            "category": "prop",
            "position_hint": "bathroom wall or mirror area near sink number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Family photo face-melting vision",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Rough red circle with pinned stained photo",
            "category": "prop",
            "position_hint": "small bedroom wall above bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Ransack footprints through shared zone",
            "category": "prop",
            "position_hint": "floor path from entrance number 6 through shared zone number 2 toward small bedroom door number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Living window open state",
            "category": "opening",
            "position_hint": "same location as small living window number 7 on the south wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Overturned chairs and disturbed belongings",
            "category": "furniture",
            "position_hint": "around dining table number 10 and across the shared kitchen-living zone",
            "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)"
        ]
      },
      "L06B07": {
        "bg_id": "L06B07",
        "fp_id": "fp_l06_unit_main",
        "use_numbered_elements": [
          1,
          2,
          4,
          6,
          10,
          11,
          13,
          16,
          17,
          20,
          21,
          28
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          27,
          29,
          30,
          31,
          32,
          33,
          34
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Entrance threshold zone",
            "category": "area",
            "position_hint": "west edge of the unit, just inside the steel entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Shared kitchen-living zone",
            "category": "area",
            "position_hint": "central and western half of the unit",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Small bedroom zone",
            "category": "area",
            "position_hint": "southeast private room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Steel entrance door",
            "category": "opening",
            "position_hint": "west exterior wall opening into the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Dining table with chairs",
            "category": "furniture",
            "position_hint": "center of the shared kitchen-living zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "TV on low cabinet",
            "category": "furniture",
            "position_hint": "south wall of the shared zone, facing the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Small bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared zone opening into the southeast room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Small bedroom bed",
            "category": "furniture",
            "position_hint": "inside the small bedroom, set along the south wall with wall space above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Small bedroom curtained window",
            "category": "opening",
            "position_hint": "east wall of the small bedroom, behind curtain symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Small bedroom storage wardrobe",
            "category": "furniture",
            "position_hint": "small bedroom wall opposite the bed",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Living floor lamp",
            "category": "furniture",
            "position_hint": "shared zone corner near the TV and small living window",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 28,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "small bedroom floor or chair area near wardrobe number 20",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "Herbal pot, washed herbs, and tea setup",
            "category": "prop",
            "position_hint": "kitchen counter and stovetop near numbers 8 and 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Bloodstains and bloody footprints leading to curtain",
            "category": "prop",
            "position_hint": "floor of small bedroom number 4, leading toward curtained window number 17",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Body seated by curtain",
            "category": "prop",
            "position_hint": "small bedroom number 4, directly beside curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Crumpled stained old photo",
            "category": "prop",
            "position_hint": "near the body by curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Red circle appearing on small bedroom wall",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle vision reflected in bathroom",
            "category": "prop",
            "position_hint": "bathroom wall or mirror area near sink number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Family photo face-melting vision",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Rough red circle with pinned stained photo",
            "category": "prop",
            "position_hint": "small bedroom wall above bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Ransack footprints through shared zone",
            "category": "prop",
            "position_hint": "floor path from entrance number 6 through shared zone number 2 toward small bedroom door number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Living window open state",
            "category": "opening",
            "position_hint": "same location as small living window number 7 on the south wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Overturned chairs and disturbed belongings",
            "category": "furniture",
            "position_hint": "around dining table number 10 and across the shared kitchen-living zone",
            "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)"
        ]
      },
      "L06B04": {
        "bg_id": "L06B04",
        "fp_id": "fp_l06_unit_main",
        "use_numbered_elements": [
          2,
          3,
          4,
          10,
          12,
          13,
          15,
          16,
          17,
          20
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "Shared kitchen-living zone",
            "category": "area",
            "position_hint": "central and western half of the unit",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Main bedroom zone",
            "category": "area",
            "position_hint": "northeast private room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Small bedroom zone",
            "category": "area",
            "position_hint": "southeast private room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Dining table with chairs",
            "category": "furniture",
            "position_hint": "center of the shared kitchen-living zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Main bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared zone opening into the northeast room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Small bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared zone opening into the southeast room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Main bedroom bed",
            "category": "furniture",
            "position_hint": "against the north or east wall inside the main bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Small bedroom bed",
            "category": "furniture",
            "position_hint": "inside the small bedroom, set along the south wall with wall space above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Small bedroom curtained window",
            "category": "opening",
            "position_hint": "east wall of the small bedroom, behind curtain symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Small bedroom storage wardrobe",
            "category": "furniture",
            "position_hint": "small bedroom wall opposite the bed",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "Herbal pot, washed herbs, and tea setup",
            "category": "prop",
            "position_hint": "kitchen counter and stovetop near numbers 8 and 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Bloodstains and bloody footprints leading to curtain",
            "category": "prop",
            "position_hint": "floor of small bedroom number 4, leading toward curtained window number 17",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Body seated by curtain",
            "category": "prop",
            "position_hint": "small bedroom number 4, directly beside curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Crumpled stained old photo",
            "category": "prop",
            "position_hint": "near the body by curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Red circle appearing on small bedroom wall",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "small bedroom floor or chair area near wardrobe number 20",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle vision reflected in bathroom",
            "category": "prop",
            "position_hint": "bathroom wall or mirror area near sink number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Family photo face-melting vision",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Rough red circle with pinned stained photo",
            "category": "prop",
            "position_hint": "small bedroom wall above bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Ransack footprints through shared zone",
            "category": "prop",
            "position_hint": "floor path from entrance number 6 through shared zone number 2 toward small bedroom door number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Living window open state",
            "category": "opening",
            "position_hint": "same location as small living window number 7 on the south wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Overturned chairs and disturbed belongings",
            "category": "furniture",
            "position_hint": "around dining table number 10 and across the shared kitchen-living zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B05": {
        "bg_id": "L06B05",
        "fp_id": "fp_l06_unit_main",
        "use_numbered_elements": [
          2,
          5,
          10,
          14,
          18,
          19,
          29,
          30
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          27,
          28,
          31,
          32,
          33,
          34
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "Shared kitchen-living zone",
            "category": "area",
            "position_hint": "central and western half of the unit",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Bathroom zone",
            "category": "area",
            "position_hint": "southwest corner near the entrance and shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Dining table with chairs",
            "category": "furniture",
            "position_hint": "center of the shared kitchen-living zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Bathroom door",
            "category": "opening",
            "position_hint": "southwest interior wall between shared zone and bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Bathroom sink",
            "category": "prop",
            "position_hint": "inside bathroom along the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Bathroom toilet and shower fixture",
            "category": "prop",
            "position_hint": "inside bathroom along the south and east sides",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 29,
            "label": "Red circle vision reflected in bathroom",
            "category": "prop",
            "position_hint": "bathroom wall or mirror area near sink number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Family photo face-melting vision",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "Herbal pot, washed herbs, and tea setup",
            "category": "prop",
            "position_hint": "kitchen counter and stovetop near numbers 8 and 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Bloodstains and bloody footprints leading to curtain",
            "category": "prop",
            "position_hint": "floor of small bedroom number 4, leading toward curtained window number 17",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Body seated by curtain",
            "category": "prop",
            "position_hint": "small bedroom number 4, directly beside curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Crumpled stained old photo",
            "category": "prop",
            "position_hint": "near the body by curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Red circle appearing on small bedroom wall",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "small bedroom floor or chair area near wardrobe number 20",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Rough red circle with pinned stained photo",
            "category": "prop",
            "position_hint": "small bedroom wall above bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Ransack footprints through shared zone",
            "category": "prop",
            "position_hint": "floor path from entrance number 6 through shared zone number 2 toward small bedroom door number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Living window open state",
            "category": "opening",
            "position_hint": "same location as small living window number 7 on the south wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Overturned chairs and disturbed belongings",
            "category": "furniture",
            "position_hint": "around dining table number 10 and across the shared kitchen-living zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B02": {
        "bg_id": "L06B02",
        "fp_id": "fp_l06_unit_main",
        "use_numbered_elements": [
          4,
          13,
          16,
          17,
          20,
          31
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          27,
          28,
          29,
          30,
          32,
          33,
          34
        ],
        "base_markers_to_reference": [
          {
            "number": 4,
            "label": "Small bedroom zone",
            "category": "area",
            "position_hint": "southeast private room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Small bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared zone opening into the southeast room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Small bedroom bed",
            "category": "furniture",
            "position_hint": "inside the small bedroom, set along the south wall with wall space above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Small bedroom curtained window",
            "category": "opening",
            "position_hint": "east wall of the small bedroom, behind curtain symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Small bedroom storage wardrobe",
            "category": "furniture",
            "position_hint": "small bedroom wall opposite the bed",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 31,
            "label": "Rough red circle with pinned stained photo",
            "category": "prop",
            "position_hint": "small bedroom wall above bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "Herbal pot, washed herbs, and tea setup",
            "category": "prop",
            "position_hint": "kitchen counter and stovetop near numbers 8 and 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Bloodstains and bloody footprints leading to curtain",
            "category": "prop",
            "position_hint": "floor of small bedroom number 4, leading toward curtained window number 17",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Body seated by curtain",
            "category": "prop",
            "position_hint": "small bedroom number 4, directly beside curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Crumpled stained old photo",
            "category": "prop",
            "position_hint": "near the body by curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Red circle appearing on small bedroom wall",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "small bedroom floor or chair area near wardrobe number 20",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle vision reflected in bathroom",
            "category": "prop",
            "position_hint": "bathroom wall or mirror area near sink number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Family photo face-melting vision",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Ransack footprints through shared zone",
            "category": "prop",
            "position_hint": "floor path from entrance number 6 through shared zone number 2 toward small bedroom door number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Living window open state",
            "category": "opening",
            "position_hint": "same location as small living window number 7 on the south wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Overturned chairs and disturbed belongings",
            "category": "furniture",
            "position_hint": "around dining table number 10 and across the shared kitchen-living zone",
            "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": []
      },
      "L06B03": {
        "bg_id": "L06B03",
        "fp_id": "fp_l06_unit_main",
        "use_numbered_elements": [
          1,
          2,
          4,
          6,
          7,
          8,
          9,
          10,
          11,
          13,
          16,
          17,
          20,
          21,
          32,
          33,
          34
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          27,
          28,
          29,
          30,
          31
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Entrance threshold zone",
            "category": "area",
            "position_hint": "west edge of the unit, just inside the steel entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Shared kitchen-living zone",
            "category": "area",
            "position_hint": "central and western half of the unit",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Small bedroom zone",
            "category": "area",
            "position_hint": "southeast private room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Steel entrance door",
            "category": "opening",
            "position_hint": "west exterior wall opening into the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Small living window",
            "category": "opening",
            "position_hint": "south wall of the shared kitchen-living zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Kitchen sink and faucet",
            "category": "prop",
            "position_hint": "north wall of the shared zone, left side of kitchenette counter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Compact stovetop counter",
            "category": "prop",
            "position_hint": "north wall of the shared zone, beside the sink counter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Dining table with chairs",
            "category": "furniture",
            "position_hint": "center of the shared kitchen-living zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "TV on low cabinet",
            "category": "furniture",
            "position_hint": "south wall of the shared zone, facing the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Small bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared zone opening into the southeast room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Small bedroom bed",
            "category": "furniture",
            "position_hint": "inside the small bedroom, set along the south wall with wall space above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Small bedroom curtained window",
            "category": "opening",
            "position_hint": "east wall of the small bedroom, behind curtain symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Small bedroom storage wardrobe",
            "category": "furniture",
            "position_hint": "small bedroom wall opposite the bed",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Living floor lamp",
            "category": "furniture",
            "position_hint": "shared zone corner near the TV and small living window",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 32,
            "label": "Ransack footprints through shared zone",
            "category": "prop",
            "position_hint": "floor path from entrance number 6 through shared zone number 2 toward small bedroom door number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Living window open state",
            "category": "opening",
            "position_hint": "same location as small living window number 7 on the south wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Overturned chairs and disturbed belongings",
            "category": "furniture",
            "position_hint": "around dining table number 10 and across the shared kitchen-living zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "Herbal pot, washed herbs, and tea setup",
            "category": "prop",
            "position_hint": "kitchen counter and stovetop near numbers 8 and 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Bloodstains and bloody footprints leading to curtain",
            "category": "prop",
            "position_hint": "floor of small bedroom number 4, leading toward curtained window number 17",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Body seated by curtain",
            "category": "prop",
            "position_hint": "small bedroom number 4, directly beside curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Crumpled stained old photo",
            "category": "prop",
            "position_hint": "near the body by curtained window number 17",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Red circle appearing on small bedroom wall",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 16",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "small bedroom floor or chair area near wardrobe number 20",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red circle vision reflected in bathroom",
            "category": "prop",
            "position_hint": "bathroom wall or mirror area near sink number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Family photo face-melting vision",
            "category": "prop",
            "position_hint": "on dining table number 10 in the shared zone",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Rough red circle with pinned stained photo",
            "category": "prop",
            "position_hint": "small bedroom wall above bed number 16",
            "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)"
        ]
      },
      "L09B01": {
        "bg_id": "L09B01",
        "fp_id": "fp_l09_main_exterior_entrance",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          6,
          7,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "mart sales floor interior strip",
            "category": "area",
            "position_hint": "north side behind the facade wall, spanning behind the entrance and exit",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "public sidewalk frontage",
            "category": "area",
            "position_hint": "central exterior band directly in front of the mart facade",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "street vehicle lane",
            "category": "area",
            "position_hint": "south edge of the plan, parallel to the sidewalk",
            "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": "front facade, left-center, between sidewalk and sales floor",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bike parking bay",
            "category": "area",
            "position_hint": "sidewalk area near the entrance side of the facade",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "main sliding entrance doors",
            "category": "opening",
            "position_hint": "left-center opening on the mart facade at the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "facade display windows",
            "category": "opening",
            "position_hint": "long window bands along the front wall on both sides of the doors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "staff service door",
            "category": "opening",
            "position_hint": "far entrance-side end of the facade, smaller than the public doors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "fixed bicycle rack",
            "category": "prop",
            "position_hint": "inside the bike parking bay, angled parallel to the facade",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "exterior CCTV camera",
            "category": "prop",
            "position_hint": "mounted high on the facade between the entrance and exit, aimed toward the sidewalk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "facade sign panels",
            "category": "prop",
            "position_hint": "above the front doors and display windows as shallow rectangular panels",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "curbside taxi and loading pull-in",
            "category": "area",
            "position_hint": "between the sidewalk frontage and the street vehicle lane",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "temporary parked bicycle",
            "category": "prop",
            "position_hint": "at the bicycle rack near the entrance, present only in applicable event overlays",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "temporary curbside vehicles and vendor carts",
            "category": "prop",
            "position_hint": "along the street lane and curbside pull-in, present only in busy street overlays",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 17,
            "label": "handheld phone use outside exit",
            "category": "prop",
            "position_hint": "on the sidewalk just beyond the exit threshold, present only in the exit phone-checking overlay",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          6,
          14
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 6, 14]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L09B02": {
        "bg_id": "L09B02",
        "fp_id": "fp_l09_main_exterior_entrance",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          8,
          9,
          12,
          13,
          14,
          16,
          17
        ],
        "ignore_numbered_elements": [
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "mart sales floor interior strip",
            "category": "area",
            "position_hint": "north side behind the facade wall, spanning behind the entrance and exit",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "public sidewalk frontage",
            "category": "area",
            "position_hint": "central exterior band directly in front of the mart facade",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "street vehicle lane",
            "category": "area",
            "position_hint": "south edge of the plan, parallel to the sidewalk",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "exit threshold zone",
            "category": "area",
            "position_hint": "front facade, right-center, between sidewalk and sales floor",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "exit sliding doors",
            "category": "opening",
            "position_hint": "right-center opening on the mart facade at the exit threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "facade display windows",
            "category": "opening",
            "position_hint": "long window bands along the front wall on both sides of the doors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "exterior CCTV camera",
            "category": "prop",
            "position_hint": "mounted high on the facade between the entrance and exit, aimed toward the sidewalk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "facade sign panels",
            "category": "prop",
            "position_hint": "above the front doors and display windows as shallow rectangular panels",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "curbside taxi and loading pull-in",
            "category": "area",
            "position_hint": "between the sidewalk frontage and the street vehicle lane",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 16,
            "label": "temporary curbside vehicles and vendor carts",
            "category": "prop",
            "position_hint": "along the street lane and curbside pull-in, present only in busy street overlays",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "handheld phone use outside exit",
            "category": "prop",
            "position_hint": "on the sidewalk just beyond the exit threshold, present only in the exit phone-checking overlay",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "temporary parked bicycle",
            "category": "prop",
            "position_hint": "at the bicycle rack near the entrance, present only in applicable event overlays",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          5,
          14
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 5, 14]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L10B01": {
        "bg_id": "L10B01",
        "fp_id": "fp_l10_main_sales_floor",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          20,
          21
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Main customer sales zone",
            "category": "area",
            "position_hint": "central and largest area containing the main aisle grid",
            "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 front edge, vestibule just inside the main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Checkout and customer service zone",
            "category": "area",
            "position_hint": "southwest/front-left band beside the entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Staff and back service zone",
            "category": "area",
            "position_hint": "north rear strip behind the sales aisles",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Refrigeration utility zone",
            "category": "area",
            "position_hint": "north and east wall band around cold cases",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Glass sliding entrance doors",
            "category": "opening",
            "position_hint": "south wall centered on the entrance threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Front window band",
            "category": "opening",
            "position_hint": "south wall flanking the sliding entrance doors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Cart bay",
            "category": "furniture",
            "position_hint": "inside entrance threshold, southeast corner near the front window band",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Checkout lanes",
            "category": "furniture",
            "position_hint": "front-left area, parallel lanes between the sales zone and exit path",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Customer service counter",
            "category": "furniture",
            "position_hint": "southwest corner adjacent to checkout lanes",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Produce display islands",
            "category": "furniture",
            "position_hint": "front-center of main sales zone after the entrance threshold",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Left dry-goods shelf block",
            "category": "furniture",
            "position_hint": "west side of main sales zone, long north-south shelving rows",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Center grocery shelf block",
            "category": "furniture",
            "position_hint": "central main sales zone, long parallel shelving rows",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Right household-goods shelf block",
            "category": "furniture",
            "position_hint": "east side of main sales zone, long north-south shelving rows",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Main cross aisle",
            "category": "area",
            "position_hint": "wide east-west aisle cutting across the middle of the shelf grid",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Refrigerated wall cases",
            "category": "prop",
            "position_hint": "north and east walls inside the refrigeration utility zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Staff stocking alcove",
            "category": "prop",
            "position_hint": "northwest rear edge near the transition to the staff/back service zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Staff-only stockroom door",
            "category": "opening",
            "position_hint": "north wall behind the staff stocking alcove",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Ceiling CCTV camera",
            "category": "prop",
            "position_hint": "high central sales floor position above the main cross aisle, represented by a small plan symbol",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 20,
            "label": "Parked bicycle outside entrance",
            "category": "prop",
            "position_hint": "outside the south entrance, beyond the glass sliding doors; not drawn on the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Temporary stocking cartons",
            "category": "prop",
            "position_hint": "near the main cross aisle by the staff stocking alcove; not drawn on the base floor plan",
            "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,
          5,
          15
        ],
        "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, 15]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L11B01": {
        "bg_id": "L11B01",
        "fp_id": "fp_l11_main_security_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Shared work zone",
            "category": "area",
            "position_hint": "central and northern portion of the security office around the CCTV workstation",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Corridor threshold zone",
            "category": "area",
            "position_hint": "south edge of the plan outside and just inside the entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Inward-swinging entrance door",
            "category": "opening",
            "position_hint": "south wall, slightly west of center, swinging into the office",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "L-shaped CCTV workstation desk",
            "category": "furniture",
            "position_hint": "north wall and northeast corner, oriented so the operator faces the monitor bank",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "CCTV monitor bank",
            "category": "prop",
            "position_hint": "north wall above and behind the workstation desk, with additional screen rectangles on the desk surface",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Operator chair",
            "category": "furniture",
            "position_hint": "inside the L-shaped desk opening, facing north toward the monitors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Visitor viewing chairs",
            "category": "furniture",
            "position_hint": "middle-south of the room, two simple chairs facing the workstation and monitors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Rear viewing zone",
            "category": "area",
            "position_hint": "southern half of the office behind the visitor chairs, used by people standing and watching the screens",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Recorder and equipment rack",
            "category": "prop",
            "position_hint": "west wall in a narrow service strip, near the workstation cable route",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Locked file storage cabinet",
            "category": "furniture",
            "position_hint": "southwest corner against the west wall near the threshold",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Interior glass window",
            "category": "opening",
            "position_hint": "east wall, high borrowed-light window facing the administrative corridor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "Dark unusable CCTV replay on monitor",
            "category": "prop",
            "position_hint": "on the screens of number 5 during evidence review only; not part of the base floor plan",
            "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,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L13B02": {
        "bg_id": "L13B02",
        "fp_id": "fp_police_office_main",
        "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
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open shared duty office",
            "category": "area",
            "position_hint": "central and largest zone occupying most of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "south side of plan, immediately inside the main entry",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "main glass entry door",
            "category": "opening",
            "position_hint": "south wall, aligned with the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "front-right portion of the shared office, facing the entrance aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "visitor chair at duty desk",
            "category": "furniture",
            "position_hint": "opposite number 4, on the public-facing side of the duty desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "second investigator desk",
            "category": "furniture",
            "position_hint": "left side of the central shared office, parallel to the duty desk row",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "waiting chair beside main desk",
            "category": "furniture",
            "position_hint": "near number 6 and the central aisle, suitable for a temporary seated visitor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "central worktable",
            "category": "furniture",
            "position_hint": "middle of the shared duty office between desk rows",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "fixed evidence photo board",
            "category": "prop",
            "position_hint": "east wall of the shared office, above or beside filing storage",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "computer monitor workstation",
            "category": "prop",
            "position_hint": "on or directly behind number 4, oriented toward the duty detective position",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "file cabinet bank",
            "category": "prop",
            "position_hint": "east wall below or near number 9",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "coffee and water station",
            "category": "prop",
            "position_hint": "service zone along the west wall near the rear half of the office",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "printer and copy station",
            "category": "prop",
            "position_hint": "west wall service zone, near number 12",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "small briefing nook",
            "category": "area",
            "position_hint": "northwest corner, partially separated from the shared office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "briefing nook doorway",
            "category": "opening",
            "position_hint": "opening between number 1 and number 14",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "north wall window band",
            "category": "opening",
            "position_hint": "long window line on the north exterior wall of the shared office",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "evidence storage cabinet",
            "category": "prop",
            "position_hint": "northeast utility/storage corner near the evidence board and file cabinets",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "ceiling fluorescent strip fixtures",
            "category": "prop",
            "position_hint": "evenly spaced above the open shared duty office grid, represented schematically on the plan",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 19,
            "label": "scattered enlarged case photos",
            "category": "prop",
            "position_hint": "overlay only: spread across the desk surface in the day office state, not part of the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "GPS last-location map on monitor",
            "category": "prop",
            "position_hint": "overlay only: displayed on the monitor at number 10 in the day office state, not part of the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "signature forms and call request papers",
            "category": "prop",
            "position_hint": "overlay only: loose paperwork on or near the duty desk in the day office state, not part of the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          14
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 14]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L13B01": {
        "bg_id": "L13B01",
        "fp_id": "fp_police_office_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          20,
          21
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open shared duty office",
            "category": "area",
            "position_hint": "central and largest zone occupying most of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "south side of plan, immediately inside the main entry",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "main glass entry door",
            "category": "opening",
            "position_hint": "south wall, aligned with the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "front-right portion of the shared office, facing the entrance aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "visitor chair at duty desk",
            "category": "furniture",
            "position_hint": "opposite number 4, on the public-facing side of the duty desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "second investigator desk",
            "category": "furniture",
            "position_hint": "left side of the central shared office, parallel to the duty desk row",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "waiting chair beside main desk",
            "category": "furniture",
            "position_hint": "near number 6 and the central aisle, suitable for a temporary seated visitor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "central worktable",
            "category": "furniture",
            "position_hint": "middle of the shared duty office between desk rows",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "fixed evidence photo board",
            "category": "prop",
            "position_hint": "east wall of the shared office, above or beside filing storage",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "computer monitor workstation",
            "category": "prop",
            "position_hint": "on or directly behind number 4, oriented toward the duty detective position",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "file cabinet bank",
            "category": "prop",
            "position_hint": "east wall below or near number 9",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "coffee and water station",
            "category": "prop",
            "position_hint": "service zone along the west wall near the rear half of the office",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "printer and copy station",
            "category": "prop",
            "position_hint": "west wall service zone, near number 12",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "small briefing nook",
            "category": "area",
            "position_hint": "northwest corner, partially separated from the shared office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "briefing nook doorway",
            "category": "opening",
            "position_hint": "opening between number 1 and number 14",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "north wall window band",
            "category": "opening",
            "position_hint": "long window line on the north exterior wall of the shared office",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "evidence storage cabinet",
            "category": "prop",
            "position_hint": "northeast utility/storage corner near the evidence board and file cabinets",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "ceiling fluorescent strip fixtures",
            "category": "prop",
            "position_hint": "evenly spaced above the open shared duty office grid, represented schematically on the plan",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 19,
            "label": "scattered enlarged case photos",
            "category": "prop",
            "position_hint": "overlay only: spread across the desk surface in the day office state, not part of the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "GPS last-location map on monitor",
            "category": "prop",
            "position_hint": "overlay only: displayed on the monitor at number 10 in the day office state, not part of the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "signature forms and call request papers",
            "category": "prop",
            "position_hint": "overlay only: loose paperwork on or near the duty desk in the day office state, not part of the base floor plan",
            "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,
          14
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 14]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L14B01": {
        "bg_id": "L14B01",
        "fp_id": "fp_police_station_front_road",
        "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": "front road lane",
            "category": "area",
            "position_hint": "south half of plan, running east-west in front of station",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "front sidewalk apron",
            "category": "area",
            "position_hint": "center band between road and building facade",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "bicycle parking strip",
            "category": "area",
            "position_hint": "east side of sidewalk apron, beside station entrance approach",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "curb line and road edge",
            "category": "area",
            "position_hint": "boundary between front road lane and sidewalk apron",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "fixed bicycle rack",
            "category": "prop",
            "position_hint": "inside bicycle parking strip, parallel to curb",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "station front facade wall",
            "category": "area",
            "position_hint": "north edge of plan, forming building frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "main entrance glass doors",
            "category": "opening",
            "position_hint": "center of north facade, opening onto sidewalk apron",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "front office window band",
            "category": "opening",
            "position_hint": "north facade, west of main entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "notice board window",
            "category": "opening",
            "position_hint": "north facade, east of main entrance near bicycle strip",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "station sign panel",
            "category": "prop",
            "position_hint": "mounted zone above or beside main entrance on facade line",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "small parking bay marking",
            "category": "prop",
            "position_hint": "west side of front road edge, adjacent to sidewalk apron",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "storm drain grate",
            "category": "prop",
            "position_hint": "near curb, slightly east of center by bicycle parking approach",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "ridden bicycle leaving rack",
            "category": "prop",
            "position_hint": "starts at bicycle parking strip near number 5 and moves out toward number 1",
            "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,
          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, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L17B01": {
        "bg_id": "L17B01",
        "fp_id": "fp_l17_open_sea",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open sea foreground zone",
            "category": "area",
            "position_hint": "southwest and central lower portion of the plan, broad empty water field",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "far horizon threshold band",
            "category": "area",
            "position_hint": "northeast edge of the plan, long narrow boundary band across the far side",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "northeast route corridor",
            "category": "area",
            "position_hint": "diagonal corridor running from lower southwest open water toward the northeast horizon threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "lateral open-water buffers",
            "category": "area",
            "position_hint": "left and right sides flanking the diagonal route corridor",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 5,
            "label": "small fishing boat entering fog",
            "category": "prop",
            "position_hint": "on the northeast route corridor, near the far horizon side",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "dense fog wall swallowing route",
            "category": "area",
            "position_hint": "across the northeast horizon threshold, overlapping the route corridor in the background state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "golden sunset reflection path",
            "category": "area",
            "position_hint": "long reflective band across the open sea surface, aligned from the low sunset side toward the boat route",
            "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)"
        ]
      },
      "L18B02": {
        "bg_id": "L18B02",
        "fp_id": "fp_l18_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main open working deck",
            "category": "area",
            "position_hint": "central and forward deck area between the bow rail and wheelhouse threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "compact wheelhouse service zone",
            "category": "area",
            "position_hint": "aft end of boat, rectangular cabin footprint facing the open deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse entrance threshold",
            "category": "area",
            "position_hint": "narrow landing strip immediately outside the wheelhouse doorway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "port low gunwale rail",
            "category": "prop",
            "position_hint": "west edge of the open deck, running lengthwise along the hull",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "starboard low gunwale rail",
            "category": "prop",
            "position_hint": "east edge of the open deck, running lengthwise along the hull",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bow rail",
            "category": "prop",
            "position_hint": "north curved bow edge of the boat",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "wheelhouse entrance door opening",
            "category": "opening",
            "position_hint": "center of the wheelhouse wall facing the open deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "front wheelhouse windows",
            "category": "opening",
            "position_hint": "front wall of the wheelhouse, flanking or above the entrance area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "port side wheelhouse window",
            "category": "opening",
            "position_hint": "west wall of the wheelhouse cabin",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "rectangular fish-hold hatch",
            "category": "prop",
            "position_hint": "center of the main open deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "rope and net locker",
            "category": "prop",
            "position_hint": "forward port corner of the open deck near the bow rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "fixed low crate bench",
            "category": "furniture",
            "position_hint": "starboard side of the open deck, used as a seated anchor near the gunwale",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "unfolded paper map",
            "category": "prop",
            "position_hint": "on or near the fixed low crate bench on the starboard side of the open deck",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "small printed photograph",
            "category": "prop",
            "position_hint": "beside or held over the unfolded map near the starboard deck seating position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "rushed wheelhouse threshold struggle cue",
            "category": "prop",
            "position_hint": "at the wheelhouse entrance threshold around numbers 3 and 7",
            "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)"
        ]
      },
      "L18B01": {
        "bg_id": "L18B01",
        "fp_id": "fp_l18_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          15
        ],
        "ignore_numbered_elements": [
          13,
          14
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main open working deck",
            "category": "area",
            "position_hint": "central and forward deck area between the bow rail and wheelhouse threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "compact wheelhouse service zone",
            "category": "area",
            "position_hint": "aft end of boat, rectangular cabin footprint facing the open deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse entrance threshold",
            "category": "area",
            "position_hint": "narrow landing strip immediately outside the wheelhouse doorway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "port low gunwale rail",
            "category": "prop",
            "position_hint": "west edge of the open deck, running lengthwise along the hull",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "starboard low gunwale rail",
            "category": "prop",
            "position_hint": "east edge of the open deck, running lengthwise along the hull",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bow rail",
            "category": "prop",
            "position_hint": "north curved bow edge of the boat",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "wheelhouse entrance door opening",
            "category": "opening",
            "position_hint": "center of the wheelhouse wall facing the open deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "front wheelhouse windows",
            "category": "opening",
            "position_hint": "front wall of the wheelhouse, flanking or above the entrance area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "port side wheelhouse window",
            "category": "opening",
            "position_hint": "west wall of the wheelhouse cabin",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "rectangular fish-hold hatch",
            "category": "prop",
            "position_hint": "center of the main open deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "rope and net locker",
            "category": "prop",
            "position_hint": "forward port corner of the open deck near the bow rail",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "fixed low crate bench",
            "category": "furniture",
            "position_hint": "starboard side of the open deck, used as a seated anchor near the gunwale",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "rushed wheelhouse threshold struggle cue",
            "category": "prop",
            "position_hint": "at the wheelhouse entrance threshold around numbers 3 and 7",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "unfolded paper map",
            "category": "prop",
            "position_hint": "on or near the fixed low crate bench on the starboard side of the open deck",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "small printed photograph",
            "category": "prop",
            "position_hint": "beside or held over the unfolded map near the starboard deck seating position",
            "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)"
        ]
      },
      "L19B03": {
        "bg_id": "L19B03",
        "fp_id": "fp_l19_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          13
        ],
        "ignore_numbered_elements": [
          12
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "cramped central standing space",
            "category": "area",
            "position_hint": "center of wheelhouse interior between aft door and forward console",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "front control console",
            "category": "prop",
            "position_hint": "north wall forward control zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "helm wheel",
            "category": "prop",
            "position_hint": "mounted on front control console, slightly port of center",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "throttle lever",
            "category": "prop",
            "position_hint": "on front control console, starboard side of helm wheel",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "aft sliding door to deck",
            "category": "opening",
            "position_hint": "south wall center, narrow threshold to exterior deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "narrow side bench",
            "category": "furniture",
            "position_hint": "starboard side wall, aft half of wheelhouse",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "built-in storage shelf",
            "category": "prop",
            "position_hint": "port side wall, aft half near door",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "front windshield",
            "category": "opening",
            "position_hint": "north wall above front control console",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "radio and GPS unit",
            "category": "prop",
            "position_hint": "upper portion of front control console near helm",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "port side window",
            "category": "opening",
            "position_hint": "west wall, forward half of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "starboard side window",
            "category": "opening",
            "position_hint": "east wall, forward half of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "old photograph in hand",
            "category": "prop",
            "position_hint": "held by a person in central standing space near the forward controls; overlay only, never drawn on base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "huge brush-painted red circle wall marks",
            "category": "prop",
            "position_hint": "on multiple wheelhouse wall surfaces around side and rear walls; overlay only, never drawn on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1
        ],
        "dominant_target_unit_marker_number": 1,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L19B01": {
        "bg_id": "L19B01",
        "fp_id": "fp_l19_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [
          13
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "cramped central standing space",
            "category": "area",
            "position_hint": "center of wheelhouse interior between aft door and forward console",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "front control console",
            "category": "prop",
            "position_hint": "north wall forward control zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "helm wheel",
            "category": "prop",
            "position_hint": "mounted on front control console, slightly port of center",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "throttle lever",
            "category": "prop",
            "position_hint": "on front control console, starboard side of helm wheel",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "aft sliding door to deck",
            "category": "opening",
            "position_hint": "south wall center, narrow threshold to exterior deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "narrow side bench",
            "category": "furniture",
            "position_hint": "starboard side wall, aft half of wheelhouse",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "built-in storage shelf",
            "category": "prop",
            "position_hint": "port side wall, aft half near door",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "front windshield",
            "category": "opening",
            "position_hint": "north wall above front control console",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "radio and GPS unit",
            "category": "prop",
            "position_hint": "upper portion of front control console near helm",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "port side window",
            "category": "opening",
            "position_hint": "west wall, forward half of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "starboard side window",
            "category": "opening",
            "position_hint": "east wall, forward half of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "huge brush-painted red circle wall marks",
            "category": "prop",
            "position_hint": "on multiple wheelhouse wall surfaces around side and rear walls; overlay only, never drawn on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "old photograph in hand",
            "category": "prop",
            "position_hint": "held by a person in central standing space near the forward controls; overlay only, never drawn on base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1
        ],
        "dominant_target_unit_marker_number": 1,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L19B02": {
        "bg_id": "L19B02",
        "fp_id": "fp_l19_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [
          13
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "cramped central standing space",
            "category": "area",
            "position_hint": "center of wheelhouse interior between aft door and forward console",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "front control console",
            "category": "prop",
            "position_hint": "north wall forward control zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "helm wheel",
            "category": "prop",
            "position_hint": "mounted on front control console, slightly port of center",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "throttle lever",
            "category": "prop",
            "position_hint": "on front control console, starboard side of helm wheel",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "aft sliding door to deck",
            "category": "opening",
            "position_hint": "south wall center, narrow threshold to exterior deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "narrow side bench",
            "category": "furniture",
            "position_hint": "starboard side wall, aft half of wheelhouse",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "built-in storage shelf",
            "category": "prop",
            "position_hint": "port side wall, aft half near door",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "front windshield",
            "category": "opening",
            "position_hint": "north wall above front control console",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "radio and GPS unit",
            "category": "prop",
            "position_hint": "upper portion of front control console near helm",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "port side window",
            "category": "opening",
            "position_hint": "west wall, forward half of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "starboard side window",
            "category": "opening",
            "position_hint": "east wall, forward half of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "huge brush-painted red circle wall marks",
            "category": "prop",
            "position_hint": "on multiple wheelhouse wall surfaces around side and rear walls; overlay only, never drawn on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "old photograph in hand",
            "category": "prop",
            "position_hint": "held by a person in central standing space near the forward controls; overlay only, never drawn on base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1
        ],
        "dominant_target_unit_marker_number": 1,
        "clean_background_expected": false,
        "diagnostics": []
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "4efb4539-5e18-4b29-a4b7-70a8ef444a56",
  "resolved_model": "gpt",
  "updated_at": "2026-06-10T14:05:01.912694+00:00",
  "project_config_snapshot": {}
}