{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "441d5bef641a0569",
  "data": {
    "overlays": {
      "L04B01": {
        "bg_id": "L04B01",
        "fp_id": "fp_l04_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [
          13,
          14,
          15,
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop terrace",
            "category": "area",
            "position_hint": "open central and western exterior roof area surrounding the rooftop dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop dwelling",
            "category": "area",
            "position_hint": "northeast portion of the roof terrace",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "stair landing and approach path",
            "category": "area",
            "position_hint": "southeast roof access landing continuing toward the dwelling entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "northwest corner of the terrace, inside the parapet",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "clothesline run",
            "category": "prop",
            "position_hint": "western half of the terrace between two fixed posts",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "metal entry door",
            "category": "opening",
            "position_hint": "south-facing exterior wall of the rooftop dwelling, near its southeast corner",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "small living-room window",
            "category": "opening",
            "position_hint": "south-facing exterior wall of the rooftop dwelling, west of the entry door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "north parapet run",
            "category": "area",
            "position_hint": "north edge of the rooftop terrace",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "south parapet run",
            "category": "area",
            "position_hint": "south edge of the rooftop terrace beside the stair arrival",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "west parapet run",
            "category": "area",
            "position_hint": "west edge of the rooftop terrace beside the clothesline",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "east parapet run",
            "category": "area",
            "position_hint": "east edge of the rooftop terrace beside the dwelling and stair landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "outdoor drying platform",
            "category": "furniture",
            "position_hint": "south-central terrace between the clothesline and dwelling approach",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "windblown dried herb cluster",
            "category": "prop",
            "position_hint": "single small cluster at the southeast edge of the drying platform",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "leaflet lodged in door gap",
            "category": "prop",
            "position_hint": "threshold of the metal entry door",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "slightly ajar entry door state",
            "category": "opening",
            "position_hint": "metal entry door threshold on the dwelling south wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "concealed assault silhouette in window",
            "category": "prop",
            "position_hint": "within the reflective surface of the small living-room window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          8,
          9,
          10,
          11
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 8, 9, 10, 11]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B02": {
        "bg_id": "L04B02",
        "fp_id": "fp_l04_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          9,
          10,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop terrace",
            "category": "area",
            "position_hint": "open central and western exterior roof area surrounding the rooftop dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop dwelling",
            "category": "area",
            "position_hint": "northeast portion of the roof terrace",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "stair landing and approach path",
            "category": "area",
            "position_hint": "southeast roof access landing continuing toward the dwelling entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "northwest corner of the terrace, inside the parapet",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "clothesline run",
            "category": "prop",
            "position_hint": "western half of the terrace between two fixed posts",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "metal entry door",
            "category": "opening",
            "position_hint": "south-facing exterior wall of the rooftop dwelling, near its southeast corner",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "small living-room window",
            "category": "opening",
            "position_hint": "south-facing exterior wall of the rooftop dwelling, west of the entry door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "south parapet run",
            "category": "area",
            "position_hint": "south edge of the rooftop terrace beside the stair arrival",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "west parapet run",
            "category": "area",
            "position_hint": "west edge of the rooftop terrace beside the clothesline",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "outdoor drying platform",
            "category": "furniture",
            "position_hint": "south-central terrace between the clothesline and dwelling approach",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "windblown dried herb cluster",
            "category": "prop",
            "position_hint": "single small cluster at the southeast edge of the drying platform",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "leaflet lodged in door gap",
            "category": "prop",
            "position_hint": "threshold of the metal entry door",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "slightly ajar entry door state",
            "category": "opening",
            "position_hint": "metal entry door threshold on the dwelling south wall",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "concealed assault silhouette in window",
            "category": "prop",
            "position_hint": "within the reflective surface of the small living-room window",
            "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,
          9,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 9, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B02": {
        "bg_id": "L05B02",
        "fp_id": "fp_l05_rooftop_room_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          7,
          8,
          9,
          10,
          14,
          15,
          19,
          20,
          21,
          22
        ],
        "ignore_numbered_elements": [
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "southwest corner immediately inside the exterior entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared living and dining area",
            "category": "area",
            "position_hint": "central and western portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette service strip",
            "category": "area",
            "position_hint": "northwest edge of the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "steel entrance door",
            "category": "opening",
            "position_hint": "south exterior wall at the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west exterior wall of the shared living area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "mother bedroom door",
            "category": "opening",
            "position_hint": "north side of the shared area opening into the mother bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared area opening into the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "kitchen sink",
            "category": "prop",
            "position_hint": "northwest kitchenette counter run",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "two-burner cooktop",
            "category": "prop",
            "position_hint": "northwest kitchenette counter beside the sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "two-person dining table",
            "category": "furniture",
            "position_hint": "center of the shared living and dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "west dining chair",
            "category": "furniture",
            "position_hint": "west side of the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "east dining chair",
            "category": "furniture",
            "position_hint": "east side of the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "television on low stand",
            "category": "prop",
            "position_hint": "southwest wall of the shared living area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 27,
            "label": "seated corpse behind curtain",
            "category": "prop",
            "position_hint": "east edge of the daughter bedroom directly behind the curtained window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "floor beside the curtained window in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloody footprint trail",
            "category": "prop",
            "position_hint": "single continuous path from the daughter bedroom doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "rough red wall circle above daughter bed",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "overturned teacup",
            "category": "prop",
            "position_hint": "one corner of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "mirror-only red circle apparition",
            "category": "prop",
            "position_hint": "bathroom wall visible only within the washbasin mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "melting face in framed photograph",
            "category": "prop",
            "position_hint": "framed photograph at the dining table edge",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "bloodied old photo pinned in red circle",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom adjacent to the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprint trail",
            "category": "prop",
            "position_hint": "single continuous path across the shared area from the entrance toward the living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "localized pile of searched contents",
            "category": "prop",
            "position_hint": "north side of the shared area beside the kitchenette",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window in open state",
            "category": "opening",
            "position_hint": "same contiguous west-wall location as the small living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "fallen west dining chair",
            "category": "furniture",
            "position_hint": "floor immediately west of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "fallen east dining chair",
            "category": "furniture",
            "position_hint": "floor immediately east of the dining table",
            "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": true,
        "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)"
        ]
      },
      "L05B06": {
        "bg_id": "L05B06",
        "fp_id": "fp_l05_rooftop_room_interior",
        "use_numbered_elements": [
          2,
          5,
          8,
          10,
          12,
          19,
          24,
          27,
          28,
          29,
          30,
          31
        ],
        "ignore_numbered_elements": [
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "shared living and dining area",
            "category": "area",
            "position_hint": "central and western portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast enclosed room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west exterior wall of the shared living area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared area opening into the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "daughter bedroom curtained window",
            "category": "opening",
            "position_hint": "east exterior wall of the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "two-person dining table",
            "category": "furniture",
            "position_hint": "center of the shared living and dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "north wall of the daughter bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 27,
            "label": "seated corpse behind curtain",
            "category": "prop",
            "position_hint": "east edge of the daughter bedroom directly behind the curtained window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "floor beside the curtained window in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloody footprint trail",
            "category": "prop",
            "position_hint": "single continuous path from the daughter bedroom doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "rough red wall circle above daughter bed",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "overturned teacup",
            "category": "prop",
            "position_hint": "one corner of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 32,
            "label": "mirror-only red circle apparition",
            "category": "prop",
            "position_hint": "bathroom wall visible only within the washbasin mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "melting face in framed photograph",
            "category": "prop",
            "position_hint": "framed photograph at the dining table edge",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "bloodied old photo pinned in red circle",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom adjacent to the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprint trail",
            "category": "prop",
            "position_hint": "single continuous path across the shared area from the entrance toward the living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "localized pile of searched contents",
            "category": "prop",
            "position_hint": "north side of the shared area beside the kitchenette",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window in open state",
            "category": "opening",
            "position_hint": "same contiguous west-wall location as the small living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "fallen west dining chair",
            "category": "furniture",
            "position_hint": "floor immediately west of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "fallen east dining chair",
            "category": "furniture",
            "position_hint": "floor immediately east of the dining table",
            "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)"
        ]
      },
      "L05B07": {
        "bg_id": "L05B07",
        "fp_id": "fp_l05_rooftop_room_interior",
        "use_numbered_elements": [
          2,
          5,
          10,
          12,
          19,
          24,
          25
        ],
        "ignore_numbered_elements": [
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "shared living and dining area",
            "category": "area",
            "position_hint": "central and western portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast enclosed room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared area opening into the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "daughter bedroom curtained window",
            "category": "opening",
            "position_hint": "east exterior wall of the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "two-person dining table",
            "category": "furniture",
            "position_hint": "center of the shared living and dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "north wall of the daughter bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "daughter wardrobe",
            "category": "furniture",
            "position_hint": "south wall of the daughter bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 27,
            "label": "seated corpse behind curtain",
            "category": "prop",
            "position_hint": "east edge of the daughter bedroom directly behind the curtained window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "floor beside the curtained window in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloody footprint trail",
            "category": "prop",
            "position_hint": "single continuous path from the daughter bedroom doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "rough red wall circle above daughter bed",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "overturned teacup",
            "category": "prop",
            "position_hint": "one corner of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "mirror-only red circle apparition",
            "category": "prop",
            "position_hint": "bathroom wall visible only within the washbasin mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "melting face in framed photograph",
            "category": "prop",
            "position_hint": "framed photograph at the dining table edge",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "bloodied old photo pinned in red circle",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom adjacent to the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprint trail",
            "category": "prop",
            "position_hint": "single continuous path across the shared area from the entrance toward the living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "localized pile of searched contents",
            "category": "prop",
            "position_hint": "north side of the shared area beside the kitchenette",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window in open state",
            "category": "opening",
            "position_hint": "same contiguous west-wall location as the small living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "fallen west dining chair",
            "category": "furniture",
            "position_hint": "floor immediately west of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "fallen east dining chair",
            "category": "furniture",
            "position_hint": "floor immediately east of the dining table",
            "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": true,
        "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)"
        ]
      },
      "L05B03": {
        "bg_id": "L05B03",
        "fp_id": "fp_l05_rooftop_room_interior",
        "use_numbered_elements": [
          2,
          4,
          5,
          9,
          10,
          13,
          19,
          23
        ],
        "ignore_numbered_elements": [
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "shared living and dining area",
            "category": "area",
            "position_hint": "central and western portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "mother bedroom",
            "category": "area",
            "position_hint": "northeast enclosed room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast enclosed room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "mother bedroom door",
            "category": "opening",
            "position_hint": "north side of the shared area opening into the mother bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared area opening into the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "mother bedroom window",
            "category": "opening",
            "position_hint": "north exterior wall of the mother bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "two-person dining table",
            "category": "furniture",
            "position_hint": "center of the shared living and dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "mother bed",
            "category": "furniture",
            "position_hint": "east side of the mother bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 27,
            "label": "seated corpse behind curtain",
            "category": "prop",
            "position_hint": "east edge of the daughter bedroom directly behind the curtained window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "floor beside the curtained window in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloody footprint trail",
            "category": "prop",
            "position_hint": "single continuous path from the daughter bedroom doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "rough red wall circle above daughter bed",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "overturned teacup",
            "category": "prop",
            "position_hint": "one corner of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "mirror-only red circle apparition",
            "category": "prop",
            "position_hint": "bathroom wall visible only within the washbasin mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "melting face in framed photograph",
            "category": "prop",
            "position_hint": "framed photograph at the dining table edge",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "bloodied old photo pinned in red circle",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom adjacent to the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprint trail",
            "category": "prop",
            "position_hint": "single continuous path across the shared area from the entrance toward the living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "localized pile of searched contents",
            "category": "prop",
            "position_hint": "north side of the shared area beside the kitchenette",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window in open state",
            "category": "opening",
            "position_hint": "same contiguous west-wall location as the small living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "fallen west dining chair",
            "category": "furniture",
            "position_hint": "floor immediately west of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "fallen east dining chair",
            "category": "furniture",
            "position_hint": "floor immediately east of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B01": {
        "bg_id": "L05B01",
        "fp_id": "fp_l05_rooftop_room_interior",
        "use_numbered_elements": [
          2,
          6,
          11,
          17,
          18,
          19,
          32,
          33
        ],
        "ignore_numbered_elements": [
          27,
          28,
          29,
          30,
          31,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "shared living and dining area",
            "category": "area",
            "position_hint": "central and western portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "compact wet bathroom",
            "category": "area",
            "position_hint": "south-central enclosed room beside the entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "south side of the shared area beside the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "washbasin and wall mirror",
            "category": "prop",
            "position_hint": "north wall of the compact bathroom",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "wet-room shower drain",
            "category": "prop",
            "position_hint": "southeast floor area of the compact bathroom",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "two-person dining table",
            "category": "furniture",
            "position_hint": "center of the shared living and dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 32,
            "label": "mirror-only red circle apparition",
            "category": "prop",
            "position_hint": "bathroom wall visible only within the washbasin mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "melting face in framed photograph",
            "category": "prop",
            "position_hint": "framed photograph at the dining table edge",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 27,
            "label": "seated corpse behind curtain",
            "category": "prop",
            "position_hint": "east edge of the daughter bedroom directly behind the curtained window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "floor beside the curtained window in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloody footprint trail",
            "category": "prop",
            "position_hint": "single continuous path from the daughter bedroom doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "rough red wall circle above daughter bed",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "overturned teacup",
            "category": "prop",
            "position_hint": "one corner of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "bloodied old photo pinned in red circle",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom adjacent to the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprint trail",
            "category": "prop",
            "position_hint": "single continuous path across the shared area from the entrance toward the living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "localized pile of searched contents",
            "category": "prop",
            "position_hint": "north side of the shared area beside the kitchenette",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window in open state",
            "category": "opening",
            "position_hint": "same contiguous west-wall location as the small living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "fallen west dining chair",
            "category": "furniture",
            "position_hint": "floor immediately west of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "fallen east dining chair",
            "category": "furniture",
            "position_hint": "floor immediately east of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B04": {
        "bg_id": "L05B04",
        "fp_id": "fp_l05_rooftop_room_interior",
        "use_numbered_elements": [
          5,
          10,
          12,
          24,
          34
        ],
        "ignore_numbered_elements": [
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast enclosed room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared area opening into the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "daughter bedroom curtained window",
            "category": "opening",
            "position_hint": "east exterior wall of the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "north wall of the daughter bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 34,
            "label": "bloodied old photo pinned in red circle",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom adjacent to the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 27,
            "label": "seated corpse behind curtain",
            "category": "prop",
            "position_hint": "east edge of the daughter bedroom directly behind the curtained window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "floor beside the curtained window in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloody footprint trail",
            "category": "prop",
            "position_hint": "single continuous path from the daughter bedroom doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "rough red wall circle above daughter bed",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "overturned teacup",
            "category": "prop",
            "position_hint": "one corner of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "mirror-only red circle apparition",
            "category": "prop",
            "position_hint": "bathroom wall visible only within the washbasin mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "melting face in framed photograph",
            "category": "prop",
            "position_hint": "framed photograph at the dining table edge",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprint trail",
            "category": "prop",
            "position_hint": "single continuous path across the shared area from the entrance toward the living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "localized pile of searched contents",
            "category": "prop",
            "position_hint": "north side of the shared area beside the kitchenette",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window in open state",
            "category": "opening",
            "position_hint": "same contiguous west-wall location as the small living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "fallen west dining chair",
            "category": "furniture",
            "position_hint": "floor immediately west of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "fallen east dining chair",
            "category": "furniture",
            "position_hint": "floor immediately east of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          5
        ],
        "dominant_target_unit_marker_number": 5,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L05B05": {
        "bg_id": "L05B05",
        "fp_id": "fp_l05_rooftop_room_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          7,
          8,
          10,
          14,
          15,
          19,
          22,
          35,
          36,
          37,
          38,
          39
        ],
        "ignore_numbered_elements": [
          20,
          21,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "southwest corner immediately inside the exterior entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared living and dining area",
            "category": "area",
            "position_hint": "central and western portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette service strip",
            "category": "area",
            "position_hint": "northwest edge of the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast enclosed room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "steel entrance door",
            "category": "opening",
            "position_hint": "south exterior wall at the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west exterior wall of the shared living area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "east side of the shared area opening into the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "kitchen sink",
            "category": "prop",
            "position_hint": "northwest kitchenette counter run",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "two-burner cooktop",
            "category": "prop",
            "position_hint": "northwest kitchenette counter beside the sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "two-person dining table",
            "category": "furniture",
            "position_hint": "center of the shared living and dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "television on low stand",
            "category": "prop",
            "position_hint": "southwest wall of the shared living area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 35,
            "label": "intruder footprint trail",
            "category": "prop",
            "position_hint": "single continuous path across the shared area from the entrance toward the living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "localized pile of searched contents",
            "category": "prop",
            "position_hint": "north side of the shared area beside the kitchenette",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window in open state",
            "category": "opening",
            "position_hint": "same contiguous west-wall location as the small living window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "fallen west dining chair",
            "category": "furniture",
            "position_hint": "floor immediately west of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "fallen east dining chair",
            "category": "furniture",
            "position_hint": "floor immediately east of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 27,
            "label": "seated corpse behind curtain",
            "category": "prop",
            "position_hint": "east edge of the daughter bedroom directly behind the curtained window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "floor beside the curtained window in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloody footprint trail",
            "category": "prop",
            "position_hint": "single continuous path from the daughter bedroom doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "rough red wall circle above daughter bed",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "overturned teacup",
            "category": "prop",
            "position_hint": "one corner of the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "mirror-only red circle apparition",
            "category": "prop",
            "position_hint": "bathroom wall visible only within the washbasin mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "melting face in framed photograph",
            "category": "prop",
            "position_hint": "framed photograph at the dining table edge",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "bloodied old photo pinned in red circle",
            "category": "prop",
            "position_hint": "north wall of the daughter bedroom adjacent to the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "marker #20 in ignore_numbered_elements is a base layer marker ('base_persistent_furniture'); structural elements normally remain in use",
          "marker #21 in ignore_numbered_elements is a base layer marker ('base_persistent_furniture'); structural elements normally remain in use",
          "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)"
        ]
      },
      "L12B02": {
        "bg_id": "L12B02",
        "fp_id": "fp_l12_stairs",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          15,
          16
        ],
        "ignore_numbered_elements": [
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rear courtyard",
            "category": "area",
            "position_hint": "south end of the diagram at the foot of the exterior stair",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "lower stair flight",
            "category": "area",
            "position_hint": "north edge of the courtyard, ascending toward the lower landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "lower landing",
            "category": "area",
            "position_hint": "between the lower and middle stair flights",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "middle stair flight",
            "category": "area",
            "position_hint": "switchback run extending from the lower landing toward the intermediate landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "intermediate landing",
            "category": "area",
            "position_hint": "between the middle and upper stair flights",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "upper stair flight",
            "category": "area",
            "position_hint": "final narrow stair run leading to roof level",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "rooftop arrival landing",
            "category": "area",
            "position_hint": "top of the upper stair flight beside the rooftop terrace",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "localized foul odor cue",
            "category": "area",
            "position_hint": "upper portion of the stair route near the intermediate-to-upper transition",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "hastily parked bicycle",
            "category": "prop",
            "position_hint": "secluded edge of the rear courtyard beside the foot of the stair",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 17,
            "label": "half-open iron door state",
            "category": "opening",
            "position_hint": "at the iron entrance door on the rooftop-room facade",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5,
          6,
          7
        ],
        "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, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L12B04": {
        "bg_id": "L12B04",
        "fp_id": "fp_l12_stairs",
        "use_numbered_elements": [
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          17
        ],
        "ignore_numbered_elements": [
          15,
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 7,
            "label": "rooftop arrival landing",
            "category": "area",
            "position_hint": "top of the upper stair flight beside the rooftop terrace",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "rooftop terrace",
            "category": "area",
            "position_hint": "open roof area surrounding the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rooftop room",
            "category": "area",
            "position_hint": "north side of the rooftop terrace",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "south-facing wall of the rooftop room opposite the arrival landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "small room window",
            "category": "opening",
            "position_hint": "rooftop-room exterior wall beside and offset from the iron entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "far corner of the rooftop terrace, clear of the stair arrival",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "clothesline",
            "category": "prop",
            "position_hint": "one contiguous line along the outer side of the rooftop terrace",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "rooftop terrace near the clothesline but outside the direct door route",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 17,
            "label": "half-open iron door state",
            "category": "opening",
            "position_hint": "at the iron entrance door on the rooftop-room facade",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "localized foul odor cue",
            "category": "area",
            "position_hint": "upper portion of the stair route near the intermediate-to-upper transition",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "hastily parked bicycle",
            "category": "prop",
            "position_hint": "secluded edge of the rear courtyard beside the foot of the stair",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          7,
          8,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([7, 8, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L12B03": {
        "bg_id": "L12B03",
        "fp_id": "fp_l12_yard",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [
          17,
          18
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared courtyard",
            "category": "area",
            "position_hint": "center of the enclosed ground-level courtyard",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "arrival apron",
            "category": "area",
            "position_hint": "south-central threshold area immediately inside the street gate",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "bicycle nook",
            "category": "area",
            "position_hint": "recessed northwest corner of the courtyard beside the building frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "stair base landing",
            "category": "area",
            "position_hint": "northeast corner of the courtyard at the foot of the exterior stair",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "street gate",
            "category": "opening",
            "position_hint": "central opening in the south boundary wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "exterior stair flight",
            "category": "area",
            "position_hint": "narrow run along the east side of the building, rising from the stair base",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "south wall west run",
            "category": "area",
            "position_hint": "south boundary, west of the street gate",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "south wall east run",
            "category": "area",
            "position_hint": "south boundary, east of the street gate",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "west boundary wall",
            "category": "area",
            "position_hint": "continuous west edge of the courtyard",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "east boundary wall",
            "category": "area",
            "position_hint": "continuous east edge of the courtyard beside the stair route",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "villa building footprint",
            "category": "area",
            "position_hint": "north side of the plan, forming the courtyard frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "parked bicycle",
            "category": "prop",
            "position_hint": "one contiguous bicycle position inside the northwest bicycle nook",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "police vehicle",
            "category": "prop",
            "position_hint": "single vehicle position centered on the arrival apron near the street gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "police light wash",
            "category": "prop",
            "position_hint": "localized contiguous patch centered on the arrival apron and gate threshold",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 17,
            "label": "black cat",
            "category": "prop",
            "position_hint": "single position on the top of the east boundary wall",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "lit window glow",
            "category": "prop",
            "position_hint": "localized glow confined to the rooftop room window opening",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          6,
          7,
          8,
          9,
          10,
          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, 6, 7, 8, 9, 10, 11]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L12B01": {
        "bg_id": "L12B01",
        "fp_id": "fp_l12_yard",
        "use_numbered_elements": [
          1,
          9,
          10,
          11,
          12,
          13,
          17,
          18
        ],
        "ignore_numbered_elements": [
          14,
          15,
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared courtyard",
            "category": "area",
            "position_hint": "center of the enclosed ground-level courtyard",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "west boundary wall",
            "category": "area",
            "position_hint": "continuous west edge of the courtyard",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "east boundary wall",
            "category": "area",
            "position_hint": "continuous east edge of the courtyard beside the stair route",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "villa building footprint",
            "category": "area",
            "position_hint": "north side of the plan, forming the courtyard frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "rooftop room footprint",
            "category": "area",
            "position_hint": "separate upper-level plan inset aligned with the north building footprint",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "rooftop room window",
            "category": "opening",
            "position_hint": "courtyard-facing wall of the rooftop room inset",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 17,
            "label": "black cat",
            "category": "prop",
            "position_hint": "single position on the top of the east boundary wall",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "lit window glow",
            "category": "prop",
            "position_hint": "localized glow confined to the rooftop room window opening",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 14,
            "label": "parked bicycle",
            "category": "prop",
            "position_hint": "one contiguous bicycle position inside the northwest bicycle nook",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "police vehicle",
            "category": "prop",
            "position_hint": "single vehicle position centered on the arrival apron near the street gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "police light wash",
            "category": "prop",
            "position_hint": "localized contiguous patch centered on the arrival apron and gate threshold",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          9,
          10,
          11,
          12
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 9, 10, 11, 12]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L09B01": {
        "bg_id": "L09B01",
        "fp_id": "fp_l09_store",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          7,
          9,
          10,
          13,
          14
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared sales zone",
            "category": "area",
            "position_hint": "broad central and northern portion of the store",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "checkout service zone",
            "category": "area",
            "position_hint": "southwest front portion of the store",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "recessed south-center vestibule at the storefront",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "automatic sliding entrance",
            "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": "continuous checkout counter island",
            "category": "furniture",
            "position_hint": "south-central edge of the sales zone, west of the entrance path",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "west-central aisle shelf",
            "category": "furniture",
            "position_hint": "west-central sales zone, running north to south",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "east-central aisle shelf",
            "category": "furniture",
            "position_hint": "east-central sales zone, running north to south",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "promotional display island",
            "category": "furniture",
            "position_hint": "front-center of the sales zone between the entrance path and aisle shelves",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "stocking cartons",
            "category": "prop",
            "position_hint": "temporarily placed beside the south end of the east-central aisle shelf",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L15B01": {
        "bg_id": "L15B01",
        "fp_id": "fp_l15_cctv_security_room",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "compact security room shell",
            "category": "area",
            "position_hint": "west-central interior edge of the rectangular room shell",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "standing review zone",
            "category": "area",
            "position_hint": "center and south-center of the room behind the operator chair",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "southeast corner immediately inside the entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "internal entrance door",
            "category": "opening",
            "position_hint": "south wall near the southeast corner, swinging inward toward the east wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "monitor desk",
            "category": "furniture",
            "position_hint": "centered against the north wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "continuous CCTV monitor console",
            "category": "prop",
            "position_hint": "on the north side of the monitor desk, represented as one joined console with screen subdivisions",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "operator chair",
            "category": "furniture",
            "position_hint": "directly south of the monitor desk, facing north",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "operator workstation zone",
            "category": "area",
            "position_hint": "north strip of the room containing the desk, monitor console, and chair",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 9,
            "label": "unusually dark unreadable CCTV footage",
            "category": "prop",
            "position_hint": "confined to the display surfaces of the continuous monitor console; overlay only and not drawn on the 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,
          3,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L14B03": {
        "bg_id": "L14B03",
        "fp_id": "fp_l14_detective_office",
        "use_numbered_elements": [
          1,
          2,
          4,
          5,
          6,
          7,
          10,
          11
        ],
        "ignore_numbered_elements": [
          12,
          13
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared work zone",
            "category": "area",
            "position_hint": "central and northern majority of the office suite",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "threshold and visitor zone",
            "category": "area",
            "position_hint": "south side immediately inside the entry door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "primary desk workstation",
            "category": "furniture",
            "position_hint": "center-west of the shared work zone, facing east",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "duty desk workstation",
            "category": "furniture",
            "position_hint": "northeast of the shared work zone, facing southwest",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "secondary desk workstation",
            "category": "furniture",
            "position_hint": "southeast of the shared work zone, facing northwest",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "visitor bench",
            "category": "furniture",
            "position_hint": "east side of the threshold and visitor zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "entry door",
            "category": "opening",
            "position_hint": "south wall near the southwest corner of the office suite",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "north window bank",
            "category": "opening",
            "position_hint": "single contiguous run centered on the north exterior wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "spread crime-scene photographs",
            "category": "prop",
            "position_hint": "one contiguous spread across the top of the primary desk workstation at number 4",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "GPS location result",
            "category": "prop",
            "position_hint": "display surface of the monitor at the duty desk workstation at number 5",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "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)"
        ]
      },
      "L14B02": {
        "bg_id": "L14B02",
        "fp_id": "fp_l14_detective_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [
          12,
          13
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared work zone",
            "category": "area",
            "position_hint": "central and northern majority of the office suite",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "threshold and visitor zone",
            "category": "area",
            "position_hint": "south side immediately inside the entry door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "service and storage zone",
            "category": "area",
            "position_hint": "west-side strip beside the shared work zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "primary desk workstation",
            "category": "furniture",
            "position_hint": "center-west of the shared work zone, facing east",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "duty desk workstation",
            "category": "furniture",
            "position_hint": "northeast of the shared work zone, facing southwest",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "secondary desk workstation",
            "category": "furniture",
            "position_hint": "southeast of the shared work zone, facing northwest",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "visitor bench",
            "category": "furniture",
            "position_hint": "east side of the threshold and visitor zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "coffee counter",
            "category": "furniture",
            "position_hint": "north end of the service and storage zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "records cabinets",
            "category": "furniture",
            "position_hint": "west wall of the service and storage zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "entry door",
            "category": "opening",
            "position_hint": "south wall near the southwest corner of the office suite",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "north window bank",
            "category": "opening",
            "position_hint": "single contiguous run centered on the north exterior wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "spread crime-scene photographs",
            "category": "prop",
            "position_hint": "one contiguous spread across the top of the primary desk workstation at number 4",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "GPS location result",
            "category": "prop",
            "position_hint": "display surface of the monitor at the duty desk workstation at number 5",
            "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": true,
        "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)"
        ]
      },
      "L14B01": {
        "bg_id": "L14B01",
        "fp_id": "fp_l14_detective_office",
        "use_numbered_elements": [
          1,
          4,
          5,
          11,
          12,
          13
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared work zone",
            "category": "area",
            "position_hint": "central and northern majority of the office suite",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "primary desk workstation",
            "category": "furniture",
            "position_hint": "center-west of the shared work zone, facing east",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "duty desk workstation",
            "category": "furniture",
            "position_hint": "northeast of the shared work zone, facing southwest",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "north window bank",
            "category": "opening",
            "position_hint": "single contiguous run centered on the north exterior wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "spread crime-scene photographs",
            "category": "prop",
            "position_hint": "one contiguous spread across the top of the primary desk workstation at number 4",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "GPS location result",
            "category": "prop",
            "position_hint": "display surface of the monitor at the duty desk workstation at number 5",
            "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
        ],
        "dominant_target_unit_marker_number": 1,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L16B01": {
        "bg_id": "L16B01",
        "fp_id": "fp_l16_station_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "station frontage strip",
            "category": "area",
            "position_hint": "north side of plan, forming the public-service building facade and shallow interior frontage strip",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "main entrance door",
            "category": "opening",
            "position_hint": "north-center frontage, opening outward toward the entrance apron",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "front window bank",
            "category": "opening",
            "position_hint": "north frontage, directly east of the main entrance as one contiguous glazed run",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "entrance apron",
            "category": "area",
            "position_hint": "immediately south of the main entrance, between the facade and sidewalk",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "bicycle parking bay",
            "category": "area",
            "position_hint": "east side of the entrance apron, adjacent to the frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "fixed bicycle rack",
            "category": "furniture",
            "position_hint": "center of the bicycle parking bay, parallel to the building frontage",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "sidewalk departure route",
            "category": "area",
            "position_hint": "east-west pedestrian strip across the south side of the entrance apron and bicycle bay",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "curbside street edge",
            "category": "area",
            "position_hint": "southern edge of plan, adjoining the sidewalk departure route",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 9,
            "label": "parked bicycle",
            "category": "prop",
            "position_hint": "beside the fixed rack in the bicycle parking bay, oriented toward the sidewalk departure route",
            "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,
          4,
          5,
          7,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 4, 5, 7, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L20B02": {
        "bg_id": "L20B02",
        "fp_id": "fp_l20_boat_deck",
        "use_numbered_elements": [
          1,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          14,
          15
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "aft working deck",
            "category": "area",
            "position_hint": "broad central and aft portion of the boat",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse cabin",
            "category": "area",
            "position_hint": "forward-center between the two side passages",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "port side passage",
            "category": "area",
            "position_hint": "narrow passage along the left side of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "starboard side passage",
            "category": "area",
            "position_hint": "narrow passage along the right side of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "stern utility strip",
            "category": "area",
            "position_hint": "narrow transverse area at the bottom edge of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "wheelhouse access door",
            "category": "opening",
            "position_hint": "aft wall of the wheelhouse, opening onto the working deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "wheelhouse aft window bank",
            "category": "opening",
            "position_hint": "single contiguous glazed run on the aft wheelhouse wall beside the door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "port safety rail",
            "category": "prop",
            "position_hint": "single continuous rail run along the left deck edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "starboard safety rail",
            "category": "prop",
            "position_hint": "single continuous rail run along the right deck edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "stern safety rail",
            "category": "prop",
            "position_hint": "single transverse rail run across the rear deck edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "fixed deck bench",
            "category": "furniture",
            "position_hint": "aft working deck near one side, clear of the wheelhouse route",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "unfolded map",
            "category": "prop",
            "position_hint": "temporarily held or placed beside the fixed bench during the exchange",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "printed photograph",
            "category": "prop",
            "position_hint": "temporarily held above the map during the exchange",
            "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,
          3,
          4,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 4, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L20B01": {
        "bg_id": "L20B01",
        "fp_id": "fp_l20_boat_deck",
        "use_numbered_elements": [
          1,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [
          14,
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "aft working deck",
            "category": "area",
            "position_hint": "broad central and aft portion of the boat",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse cabin",
            "category": "area",
            "position_hint": "forward-center between the two side passages",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "port side passage",
            "category": "area",
            "position_hint": "narrow passage along the left side of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "starboard side passage",
            "category": "area",
            "position_hint": "narrow passage along the right side of the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "stern utility strip",
            "category": "area",
            "position_hint": "narrow transverse area at the bottom edge of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "wheelhouse access door",
            "category": "opening",
            "position_hint": "aft wall of the wheelhouse, opening onto the working deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "wheelhouse aft window bank",
            "category": "opening",
            "position_hint": "single contiguous glazed run on the aft wheelhouse wall beside the door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "port safety rail",
            "category": "prop",
            "position_hint": "single continuous rail run along the left deck edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "starboard safety rail",
            "category": "prop",
            "position_hint": "single continuous rail run along the right deck edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "stern safety rail",
            "category": "prop",
            "position_hint": "single transverse rail run across the rear deck edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "fixed deck bench",
            "category": "furniture",
            "position_hint": "aft working deck near one side, clear of the wheelhouse route",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 14,
            "label": "unfolded map",
            "category": "prop",
            "position_hint": "temporarily held or placed beside the fixed bench during the exchange",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "printed photograph",
            "category": "prop",
            "position_hint": "temporarily held above the map during the exchange",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          4,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 4, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L21B01": {
        "bg_id": "L21B01",
        "fp_id": "fp_l21_wheelhouse",
        "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": "forward helm zone",
            "category": "area",
            "position_hint": "forward half of the wheelhouse at the north bow-facing end",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "aft open blocking zone",
            "category": "area",
            "position_hint": "central and aft interior floor area behind the helm seat",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "narrow zone immediately inside the south aft doorway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "helm console with wheel",
            "category": "prop",
            "position_hint": "centered against the north forward wall beneath the windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "helm seat",
            "category": "furniture",
            "position_hint": "directly aft of the helm console with clear circulation around it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "forward windshield run",
            "category": "opening",
            "position_hint": "single contiguous glazing run across the north bow-facing wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "port side window",
            "category": "opening",
            "position_hint": "single contiguous window run in the west port wall near the helm zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "starboard side window",
            "category": "opening",
            "position_hint": "single contiguous window run in the east starboard wall near the helm zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "aft entry door",
            "category": "opening",
            "position_hint": "center of the south aft wall opening toward the exterior deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "port-wall red-circle cluster",
            "category": "prop",
            "position_hint": "one contiguous section of the west port wall behind the open blocking zone",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "starboard-wall red-circle cluster",
            "category": "prop",
            "position_hint": "one contiguous section of the east starboard wall beside the open blocking zone",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "faded photograph",
            "category": "prop",
            "position_hint": "central aft blocking zone, temporarily held or presented by a character",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L21B02": {
        "bg_id": "L21B02",
        "fp_id": "fp_l21_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          7,
          9
        ],
        "ignore_numbered_elements": [
          10,
          11,
          12
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "forward helm zone",
            "category": "area",
            "position_hint": "forward half of the wheelhouse at the north bow-facing end",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "aft open blocking zone",
            "category": "area",
            "position_hint": "central and aft interior floor area behind the helm seat",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "narrow zone immediately inside the south aft doorway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "helm console with wheel",
            "category": "prop",
            "position_hint": "centered against the north forward wall beneath the windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "helm seat",
            "category": "furniture",
            "position_hint": "directly aft of the helm console with clear circulation around it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "port side window",
            "category": "opening",
            "position_hint": "single contiguous window run in the west port wall near the helm zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "aft entry door",
            "category": "opening",
            "position_hint": "center of the south aft wall opening toward the exterior deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 10,
            "label": "port-wall red-circle cluster",
            "category": "prop",
            "position_hint": "one contiguous section of the west port wall behind the open blocking zone",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "starboard-wall red-circle cluster",
            "category": "prop",
            "position_hint": "one contiguous section of the east starboard wall beside the open blocking zone",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "faded photograph",
            "category": "prop",
            "position_hint": "central aft blocking zone, temporarily held or presented by a character",
            "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": true,
        "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)"
        ]
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "c41934e3-ee59-4c9d-b9c6-37bf0e638f98",
  "resolved_model": "gpt",
  "updated_at": "2026-07-18T21:23:35.089313+00:00",
  "project_config_snapshot": {}
}