{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "c55c2f78e54bc607",
  "data": {
    "overlays": {
      "L04B05": {
        "bg_id": "L04B05",
        "fp_id": "fp_l04_main_living_space",
        "use_numbered_elements": [
          1,
          2,
          6,
          7,
          8,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          26,
          27
        ],
        "ignore_numbered_elements": [
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "southwest edge of the unit, just inside the exterior landing and metal entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared living dining zone",
            "category": "area",
            "position_hint": "central and south-central portion of the unit, connecting entry, table, TV, kitchen, bedroom doors, and bathroom door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop exterior landing strip",
            "category": "area",
            "position_hint": "outside the southwest entrance, shown as a narrow exterior utility strip beyond the unit wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "southwest wall between exterior landing strip and entry threshold, drawn with inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living room window",
            "category": "opening",
            "position_hint": "south or southeast exterior wall of the shared living area, near the TV and dining circulation",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "main bedroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and main private bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "second bedroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and second private bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and wet bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "north side of the shared zone in the kitchen service strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "stovetop and short counter",
            "category": "prop",
            "position_hint": "beside number 13 along the kitchen service strip, facing the shared zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "low TV stand with TV",
            "category": "furniture",
            "position_hint": "south wall of the shared living area, opposite the dining table circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "small dining table with chair set",
            "category": "furniture",
            "position_hint": "center of the shared living-dining zone, between kitchen strip and bedroom doors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "standing floor lamp",
            "category": "furniture",
            "position_hint": "corner of shared living area near TV and bedroom circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 26,
            "label": "cooking pot state",
            "category": "prop",
            "position_hint": "on number 14 stovetop, appearing as boiling in the morning state or cooled in the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "TV news or TV glow state",
            "category": "prop",
            "position_hint": "on number 15 TV, active during the anxious morning and night discovery backgrounds",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 28,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on number 16 dining table during the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloodstains and trail to curtain",
            "category": "prop",
            "position_hint": "across the floor of number 4 second private bedroom, leading from the doorway area toward number 22 curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "body behind curtain",
            "category": "prop",
            "position_hint": "behind number 22 curtain in the second private bedroom discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle mark on bedroom wall",
            "category": "prop",
            "position_hint": "on the wall above number 20 bed in the second private bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside number 4 second private bedroom near number 21 wardrobe or desk, slightly displaced in the cleaned state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "bathroom reflected red circle hallucination",
            "category": "prop",
            "position_hint": "on or within the reflected tile or mirror surface near number 23 bathroom sink and mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "distorted face inside table photo",
            "category": "prop",
            "position_hint": "on a small photo surface placed on or near number 16 dining table, visible only as a hallucinated image distortion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "ransack footprints",
            "category": "prop",
            "position_hint": "through number 1 entry threshold and across number 2 shared living-dining zone toward bedroom circulation",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at number 8 small living room window during the ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around number 16 dining table in the ransacked living area state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "scattered searched household items",
            "category": "prop",
            "position_hint": "spread across number 2 shared zone and near storage edges, indicating a searched interior",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "bloody old photo pinned to wall",
            "category": "prop",
            "position_hint": "centered inside number 31 red circle mark on the wall above number 20 bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B06": {
        "bg_id": "L04B06",
        "fp_id": "fp_l04_kitchen",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "service kitchenette zone",
            "category": "area",
            "position_hint": "north side of the plan, long narrow counter zone along the wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared dining nook zone",
            "category": "area",
            "position_hint": "south and east side of the plan, immediately in front of the kitchenette counter",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "threshold to living area",
            "category": "area",
            "position_hint": "west edge of the plan, open transition from kitchen dining nook to adjoining living space",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "straight kitchenette counter run",
            "category": "furniture",
            "position_hint": "north wall, spanning most of the service zone beneath sink and stovetop",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "sink and faucet",
            "category": "prop",
            "position_hint": "left half of the north counter run, below the small window",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "two-burner stovetop",
            "category": "prop",
            "position_hint": "right half of the north counter run, adjacent to sink prep space",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "wall upper cabinet or shelf",
            "category": "furniture",
            "position_hint": "north wall above the counter run, centered over the service zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "compact refrigerator",
            "category": "prop",
            "position_hint": "east end of the counter run or tucked under the counter near the dining nook",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "small dining table",
            "category": "furniture",
            "position_hint": "southeast portion of the shared dining nook, close to the counter but leaving a narrow walking aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "single dining chair or stool",
            "category": "furniture",
            "position_hint": "south side of the small dining table, facing the kitchenette",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "small kitchen window",
            "category": "opening",
            "position_hint": "north wall above or just behind the sink area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "open interior passage",
            "category": "opening",
            "position_hint": "west side threshold, connecting this nook to the adjoining living area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "narrow ventilation window",
            "category": "opening",
            "position_hint": "east wall near the refrigerator and dining edge",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "boiling pot on stovetop",
            "category": "prop",
            "position_hint": "on top of number 6 in the service kitchenette zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "washed herbal prep at sink",
            "category": "prop",
            "position_hint": "around number 5 and the adjacent counter prep space",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "herbal tea cups on table",
            "category": "prop",
            "position_hint": "on number 9 in the shared dining nook",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "small circular wrist mark",
            "category": "prop",
            "position_hint": "near the seated table-side position by number 10, visible only in close-up overlay",
            "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
        ],
        "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)"
        ]
      },
      "L04B07": {
        "bg_id": "L04B07",
        "fp_id": "fp_l04_main_living_space",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          20,
          21,
          22,
          26,
          27,
          28,
          29,
          30,
          31
        ],
        "ignore_numbered_elements": [
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "southwest edge of the unit, just inside the exterior landing and metal entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared living dining zone",
            "category": "area",
            "position_hint": "central and south-central portion of the unit, connecting entry, table, TV, kitchen, bedroom doors, and bathroom door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "main private bedroom",
            "category": "area",
            "position_hint": "northwest room reached from the shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "second private bedroom",
            "category": "area",
            "position_hint": "northeast room reached from the shared zone, containing the bed and curtain wall used in later backgrounds",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop exterior landing strip",
            "category": "area",
            "position_hint": "outside the southwest entrance, shown as a narrow exterior utility strip beyond the unit wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "southwest wall between exterior landing strip and entry threshold, drawn with inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living room window",
            "category": "opening",
            "position_hint": "south or southeast exterior wall of the shared living area, near the TV and dining circulation",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "private bedroom window",
            "category": "opening",
            "position_hint": "east exterior wall of the second private bedroom, aligned with the curtain position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "main bedroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and main private bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "second bedroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and second private bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and wet bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "north side of the shared zone in the kitchen service strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "stovetop and short counter",
            "category": "prop",
            "position_hint": "beside number 13 along the kitchen service strip, facing the shared zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "low TV stand with TV",
            "category": "furniture",
            "position_hint": "south wall of the shared living area, opposite the dining table circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "small dining table with chair set",
            "category": "furniture",
            "position_hint": "center of the shared living-dining zone, between kitchen strip and bedroom doors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "standing floor lamp",
            "category": "furniture",
            "position_hint": "corner of shared living area near TV and bedroom circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "second bedroom bed",
            "category": "furniture",
            "position_hint": "inside second private bedroom, bed head against the wall where the later red-circle overlay appears above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "second bedroom wardrobe or desk",
            "category": "furniture",
            "position_hint": "inside second private bedroom along the interior wall near the door path",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "curtain and curtain rail",
            "category": "furniture",
            "position_hint": "inside second private bedroom, directly in front of number 9 bedroom window",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 26,
            "label": "cooking pot state",
            "category": "prop",
            "position_hint": "on number 14 stovetop, appearing as boiling in the morning state or cooled in the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "TV news or TV glow state",
            "category": "prop",
            "position_hint": "on number 15 TV, active during the anxious morning and night discovery backgrounds",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on number 16 dining table during the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloodstains and trail to curtain",
            "category": "prop",
            "position_hint": "across the floor of number 4 second private bedroom, leading from the doorway area toward number 22 curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "body behind curtain",
            "category": "prop",
            "position_hint": "behind number 22 curtain in the second private bedroom discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle mark on bedroom wall",
            "category": "prop",
            "position_hint": "on the wall above number 20 bed in the second private bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside number 4 second private bedroom near number 21 wardrobe or desk, slightly displaced in the cleaned state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "bathroom reflected red circle hallucination",
            "category": "prop",
            "position_hint": "on or within the reflected tile or mirror surface near number 23 bathroom sink and mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "distorted face inside table photo",
            "category": "prop",
            "position_hint": "on a small photo surface placed on or near number 16 dining table, visible only as a hallucinated image distortion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "ransack footprints",
            "category": "prop",
            "position_hint": "through number 1 entry threshold and across number 2 shared living-dining zone toward bedroom circulation",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at number 8 small living room window during the ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around number 16 dining table in the ransacked living area state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "scattered searched household items",
            "category": "prop",
            "position_hint": "spread across number 2 shared zone and near storage edges, indicating a searched interior",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "bloody old photo pinned to wall",
            "category": "prop",
            "position_hint": "centered inside number 31 red circle mark on the wall above number 20 bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B08": {
        "bg_id": "L04B08",
        "fp_id": "fp_l04_main_living_space",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          20,
          21,
          22,
          32
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          30,
          31,
          33,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "southwest edge of the unit, just inside the exterior landing and metal entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared living dining zone",
            "category": "area",
            "position_hint": "central and south-central portion of the unit, connecting entry, table, TV, kitchen, bedroom doors, and bathroom door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "main private bedroom",
            "category": "area",
            "position_hint": "northwest room reached from the shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "second private bedroom",
            "category": "area",
            "position_hint": "northeast room reached from the shared zone, containing the bed and curtain wall used in later backgrounds",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop exterior landing strip",
            "category": "area",
            "position_hint": "outside the southwest entrance, shown as a narrow exterior utility strip beyond the unit wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "southwest wall between exterior landing strip and entry threshold, drawn with inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living room window",
            "category": "opening",
            "position_hint": "south or southeast exterior wall of the shared living area, near the TV and dining circulation",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "private bedroom window",
            "category": "opening",
            "position_hint": "east exterior wall of the second private bedroom, aligned with the curtain position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "main bedroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and main private bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "second bedroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and second private bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and wet bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "north side of the shared zone in the kitchen service strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "stovetop and short counter",
            "category": "prop",
            "position_hint": "beside number 13 along the kitchen service strip, facing the shared zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "low TV stand with TV",
            "category": "furniture",
            "position_hint": "south wall of the shared living area, opposite the dining table circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "small dining table with chair set",
            "category": "furniture",
            "position_hint": "center of the shared living-dining zone, between kitchen strip and bedroom doors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "standing floor lamp",
            "category": "furniture",
            "position_hint": "corner of shared living area near TV and bedroom circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "second bedroom bed",
            "category": "furniture",
            "position_hint": "inside second private bedroom, bed head against the wall where the later red-circle overlay appears above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "second bedroom wardrobe or desk",
            "category": "furniture",
            "position_hint": "inside second private bedroom along the interior wall near the door path",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "curtain and curtain rail",
            "category": "furniture",
            "position_hint": "inside second private bedroom, directly in front of number 9 bedroom window",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside number 4 second private bedroom near number 21 wardrobe or desk, slightly displaced in the cleaned state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "cooking pot state",
            "category": "prop",
            "position_hint": "on number 14 stovetop, appearing as boiling in the morning state or cooled in the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "TV news or TV glow state",
            "category": "prop",
            "position_hint": "on number 15 TV, active during the anxious morning and night discovery backgrounds",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on number 16 dining table during the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloodstains and trail to curtain",
            "category": "prop",
            "position_hint": "across the floor of number 4 second private bedroom, leading from the doorway area toward number 22 curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "body behind curtain",
            "category": "prop",
            "position_hint": "behind number 22 curtain in the second private bedroom discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle mark on bedroom wall",
            "category": "prop",
            "position_hint": "on the wall above number 20 bed in the second private bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "bathroom reflected red circle hallucination",
            "category": "prop",
            "position_hint": "on or within the reflected tile or mirror surface near number 23 bathroom sink and mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "distorted face inside table photo",
            "category": "prop",
            "position_hint": "on a small photo surface placed on or near number 16 dining table, visible only as a hallucinated image distortion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "ransack footprints",
            "category": "prop",
            "position_hint": "through number 1 entry threshold and across number 2 shared living-dining zone toward bedroom circulation",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at number 8 small living room window during the ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around number 16 dining table in the ransacked living area state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "scattered searched household items",
            "category": "prop",
            "position_hint": "spread across number 2 shared zone and near storage edges, indicating a searched interior",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "bloody old photo pinned to wall",
            "category": "prop",
            "position_hint": "centered inside number 31 red circle mark on the wall above number 20 bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B03": {
        "bg_id": "L04B03",
        "fp_id": "fp_l04_main_living_space",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          18,
          19,
          20,
          21,
          22,
          23,
          24
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "southwest edge of the unit, just inside the exterior landing and metal entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared living dining zone",
            "category": "area",
            "position_hint": "central and south-central portion of the unit, connecting entry, table, TV, kitchen, bedroom doors, and bathroom door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "main private bedroom",
            "category": "area",
            "position_hint": "northwest room reached from the shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "second private bedroom",
            "category": "area",
            "position_hint": "northeast room reached from the shared zone, containing the bed and curtain wall used in later backgrounds",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "wet bathroom service room",
            "category": "area",
            "position_hint": "southeast side of the unit off the shared living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "southwest wall between exterior landing strip and entry threshold, drawn with inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living room window",
            "category": "opening",
            "position_hint": "south or southeast exterior wall of the shared living area, near the TV and dining circulation",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "private bedroom window",
            "category": "opening",
            "position_hint": "east exterior wall of the second private bedroom, aligned with the curtain position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "main bedroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and main private bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "second bedroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and second private bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and wet bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "north side of the shared zone in the kitchen service strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "stovetop and short counter",
            "category": "prop",
            "position_hint": "beside number 13 along the kitchen service strip, facing the shared zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "low TV stand with TV",
            "category": "furniture",
            "position_hint": "south wall of the shared living area, opposite the dining table circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "small dining table with chair set",
            "category": "furniture",
            "position_hint": "center of the shared living-dining zone, between kitchen strip and bedroom doors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "main bedroom bed",
            "category": "furniture",
            "position_hint": "against the west or north wall of the main private bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "main bedroom wardrobe",
            "category": "furniture",
            "position_hint": "inside main private bedroom near the interior wall and door clearance",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "second bedroom bed",
            "category": "furniture",
            "position_hint": "inside second private bedroom, bed head against the wall where the later red-circle overlay appears above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "second bedroom wardrobe or desk",
            "category": "furniture",
            "position_hint": "inside second private bedroom along the interior wall near the door path",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "curtain and curtain rail",
            "category": "furniture",
            "position_hint": "inside second private bedroom, directly in front of number 9 bedroom window",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "bathroom sink and mirror",
            "category": "prop",
            "position_hint": "inside wet bathroom on the wall facing the bathroom doorway",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "toilet and shower fixtures",
            "category": "prop",
            "position_hint": "inside wet bathroom along the far wall, shown as compact wet-room symbols",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "cooking pot state",
            "category": "prop",
            "position_hint": "on number 14 stovetop, appearing as boiling in the morning state or cooled in the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "TV news or TV glow state",
            "category": "prop",
            "position_hint": "on number 15 TV, active during the anxious morning and night discovery backgrounds",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on number 16 dining table during the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloodstains and trail to curtain",
            "category": "prop",
            "position_hint": "across the floor of number 4 second private bedroom, leading from the doorway area toward number 22 curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "body behind curtain",
            "category": "prop",
            "position_hint": "behind number 22 curtain in the second private bedroom discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle mark on bedroom wall",
            "category": "prop",
            "position_hint": "on the wall above number 20 bed in the second private bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside number 4 second private bedroom near number 21 wardrobe or desk, slightly displaced in the cleaned state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "bathroom reflected red circle hallucination",
            "category": "prop",
            "position_hint": "on or within the reflected tile or mirror surface near number 23 bathroom sink and mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "distorted face inside table photo",
            "category": "prop",
            "position_hint": "on a small photo surface placed on or near number 16 dining table, visible only as a hallucinated image distortion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "ransack footprints",
            "category": "prop",
            "position_hint": "through number 1 entry threshold and across number 2 shared living-dining zone toward bedroom circulation",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at number 8 small living room window during the ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around number 16 dining table in the ransacked living area state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "scattered searched household items",
            "category": "prop",
            "position_hint": "spread across number 2 shared zone and near storage edges, indicating a searched interior",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "bloody old photo pinned to wall",
            "category": "prop",
            "position_hint": "centered inside number 31 red circle mark on the wall above number 20 bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B04": {
        "bg_id": "L04B04",
        "fp_id": "fp_l04_main_living_space",
        "use_numbered_elements": [
          2,
          5,
          8,
          12,
          13,
          14,
          16,
          23,
          24,
          33,
          34
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "shared living dining zone",
            "category": "area",
            "position_hint": "central and south-central portion of the unit, connecting entry, table, TV, kitchen, bedroom doors, and bathroom door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "wet bathroom service room",
            "category": "area",
            "position_hint": "southeast side of the unit off the shared living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living room window",
            "category": "opening",
            "position_hint": "south or southeast exterior wall of the shared living area, near the TV and dining circulation",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and wet bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "north side of the shared zone in the kitchen service strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "stovetop and short counter",
            "category": "prop",
            "position_hint": "beside number 13 along the kitchen service strip, facing the shared zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "small dining table with chair set",
            "category": "furniture",
            "position_hint": "center of the shared living-dining zone, between kitchen strip and bedroom doors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "bathroom sink and mirror",
            "category": "prop",
            "position_hint": "inside wet bathroom on the wall facing the bathroom doorway",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "toilet and shower fixtures",
            "category": "prop",
            "position_hint": "inside wet bathroom along the far wall, shown as compact wet-room symbols",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 33,
            "label": "bathroom reflected red circle hallucination",
            "category": "prop",
            "position_hint": "on or within the reflected tile or mirror surface near number 23 bathroom sink and mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "distorted face inside table photo",
            "category": "prop",
            "position_hint": "on a small photo surface placed on or near number 16 dining table, visible only as a hallucinated image distortion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "cooking pot state",
            "category": "prop",
            "position_hint": "on number 14 stovetop, appearing as boiling in the morning state or cooled in the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "TV news or TV glow state",
            "category": "prop",
            "position_hint": "on number 15 TV, active during the anxious morning and night discovery backgrounds",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on number 16 dining table during the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloodstains and trail to curtain",
            "category": "prop",
            "position_hint": "across the floor of number 4 second private bedroom, leading from the doorway area toward number 22 curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "body behind curtain",
            "category": "prop",
            "position_hint": "behind number 22 curtain in the second private bedroom discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle mark on bedroom wall",
            "category": "prop",
            "position_hint": "on the wall above number 20 bed in the second private bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside number 4 second private bedroom near number 21 wardrobe or desk, slightly displaced in the cleaned state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "ransack footprints",
            "category": "prop",
            "position_hint": "through number 1 entry threshold and across number 2 shared living-dining zone toward bedroom circulation",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at number 8 small living room window during the ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around number 16 dining table in the ransacked living area state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "scattered searched household items",
            "category": "prop",
            "position_hint": "spread across number 2 shared zone and near storage edges, indicating a searched interior",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "bloody old photo pinned to wall",
            "category": "prop",
            "position_hint": "centered inside number 31 red circle mark on the wall above number 20 bed",
            "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)"
        ]
      },
      "L04B02": {
        "bg_id": "L04B02",
        "fp_id": "fp_l04_main_living_space",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          20,
          21,
          22,
          35,
          36,
          37,
          38
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "southwest edge of the unit, just inside the exterior landing and metal entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared living dining zone",
            "category": "area",
            "position_hint": "central and south-central portion of the unit, connecting entry, table, TV, kitchen, bedroom doors, and bathroom door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "main private bedroom",
            "category": "area",
            "position_hint": "northwest room reached from the shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "second private bedroom",
            "category": "area",
            "position_hint": "northeast room reached from the shared zone, containing the bed and curtain wall used in later backgrounds",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop exterior landing strip",
            "category": "area",
            "position_hint": "outside the southwest entrance, shown as a narrow exterior utility strip beyond the unit wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "southwest wall between exterior landing strip and entry threshold, drawn with inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living room window",
            "category": "opening",
            "position_hint": "south or southeast exterior wall of the shared living area, near the TV and dining circulation",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "private bedroom window",
            "category": "opening",
            "position_hint": "east exterior wall of the second private bedroom, aligned with the curtain position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "main bedroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and main private bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "second bedroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and second private bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and wet bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "north side of the shared zone in the kitchen service strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "stovetop and short counter",
            "category": "prop",
            "position_hint": "beside number 13 along the kitchen service strip, facing the shared zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "low TV stand with TV",
            "category": "furniture",
            "position_hint": "south wall of the shared living area, opposite the dining table circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "small dining table with chair set",
            "category": "furniture",
            "position_hint": "center of the shared living-dining zone, between kitchen strip and bedroom doors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "standing floor lamp",
            "category": "furniture",
            "position_hint": "corner of shared living area near TV and bedroom circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "second bedroom bed",
            "category": "furniture",
            "position_hint": "inside second private bedroom, bed head against the wall where the later red-circle overlay appears above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "second bedroom wardrobe or desk",
            "category": "furniture",
            "position_hint": "inside second private bedroom along the interior wall near the door path",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "curtain and curtain rail",
            "category": "furniture",
            "position_hint": "inside second private bedroom, directly in front of number 9 bedroom window",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 35,
            "label": "ransack footprints",
            "category": "prop",
            "position_hint": "through number 1 entry threshold and across number 2 shared living-dining zone toward bedroom circulation",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at number 8 small living room window during the ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around number 16 dining table in the ransacked living area state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "scattered searched household items",
            "category": "prop",
            "position_hint": "spread across number 2 shared zone and near storage edges, indicating a searched interior",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "cooking pot state",
            "category": "prop",
            "position_hint": "on number 14 stovetop, appearing as boiling in the morning state or cooled in the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "TV news or TV glow state",
            "category": "prop",
            "position_hint": "on number 15 TV, active during the anxious morning and night discovery backgrounds",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on number 16 dining table during the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloodstains and trail to curtain",
            "category": "prop",
            "position_hint": "across the floor of number 4 second private bedroom, leading from the doorway area toward number 22 curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "body behind curtain",
            "category": "prop",
            "position_hint": "behind number 22 curtain in the second private bedroom discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle mark on bedroom wall",
            "category": "prop",
            "position_hint": "on the wall above number 20 bed in the second private bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside number 4 second private bedroom near number 21 wardrobe or desk, slightly displaced in the cleaned state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "bathroom reflected red circle hallucination",
            "category": "prop",
            "position_hint": "on or within the reflected tile or mirror surface near number 23 bathroom sink and mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "distorted face inside table photo",
            "category": "prop",
            "position_hint": "on a small photo surface placed on or near number 16 dining table, visible only as a hallucinated image distortion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "bloody old photo pinned to wall",
            "category": "prop",
            "position_hint": "centered inside number 31 red circle mark on the wall above number 20 bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B01": {
        "bg_id": "L04B01",
        "fp_id": "fp_l04_main_living_space",
        "use_numbered_elements": [
          2,
          4,
          9,
          11,
          20,
          21,
          22,
          31,
          39
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          30,
          32,
          33,
          34,
          35,
          36,
          37,
          38
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "shared living dining zone",
            "category": "area",
            "position_hint": "central and south-central portion of the unit, connecting entry, table, TV, kitchen, bedroom doors, and bathroom door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "second private bedroom",
            "category": "area",
            "position_hint": "northeast room reached from the shared zone, containing the bed and curtain wall used in later backgrounds",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "private bedroom window",
            "category": "opening",
            "position_hint": "east exterior wall of the second private bedroom, aligned with the curtain position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "second bedroom door",
            "category": "opening",
            "position_hint": "interior wall between shared living zone and second private bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "second bedroom bed",
            "category": "furniture",
            "position_hint": "inside second private bedroom, bed head against the wall where the later red-circle overlay appears above it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "second bedroom wardrobe or desk",
            "category": "furniture",
            "position_hint": "inside second private bedroom along the interior wall near the door path",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "curtain and curtain rail",
            "category": "furniture",
            "position_hint": "inside second private bedroom, directly in front of number 9 bedroom window",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 31,
            "label": "red circle mark on bedroom wall",
            "category": "prop",
            "position_hint": "on the wall above number 20 bed in the second private bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "bloody old photo pinned to wall",
            "category": "prop",
            "position_hint": "centered inside number 31 red circle mark on the wall above number 20 bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "cooking pot state",
            "category": "prop",
            "position_hint": "on number 14 stovetop, appearing as boiling in the morning state or cooled in the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "TV news or TV glow state",
            "category": "prop",
            "position_hint": "on number 15 TV, active during the anxious morning and night discovery backgrounds",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on number 16 dining table during the night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "bloodstains and trail to curtain",
            "category": "prop",
            "position_hint": "across the floor of number 4 second private bedroom, leading from the doorway area toward number 22 curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "body behind curtain",
            "category": "prop",
            "position_hint": "behind number 22 curtain in the second private bedroom discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside number 4 second private bedroom near number 21 wardrobe or desk, slightly displaced in the cleaned state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "bathroom reflected red circle hallucination",
            "category": "prop",
            "position_hint": "on or within the reflected tile or mirror surface near number 23 bathroom sink and mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "distorted face inside table photo",
            "category": "prop",
            "position_hint": "on a small photo surface placed on or near number 16 dining table, visible only as a hallucinated image distortion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "ransack footprints",
            "category": "prop",
            "position_hint": "through number 1 entry threshold and across number 2 shared living-dining zone toward bedroom circulation",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at number 8 small living room window during the ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around number 16 dining table in the ransacked living area state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "scattered searched household items",
            "category": "prop",
            "position_hint": "spread across number 2 shared zone and near storage edges, indicating a searched interior",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L11B01": {
        "bg_id": "L11B01",
        "fp_id": "fp_l11_rooftop_stairs",
        "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": "exterior stair run",
            "category": "area",
            "position_hint": "southwest edge, narrow stair flight rising toward the rooftop landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop threshold landing",
            "category": "area",
            "position_hint": "center-right, small landing directly outside the rooftop room door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "open rooftop slab zone",
            "category": "area",
            "position_hint": "west and northwest of the landing, flat exterior roof area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "rooftop room entry volume",
            "category": "area",
            "position_hint": "northeast side, compact enclosed room footprint behind the entry facade",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "metal entry door",
            "category": "opening",
            "position_hint": "south-facing wall of the rooftop room, opening onto the threshold landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "small exterior window",
            "category": "opening",
            "position_hint": "same entry facade, east of the metal entry door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "low rooftop parapet",
            "category": "prop",
            "position_hint": "along south and west roof edges enclosing the stair approach",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "far northwest corner of the open rooftop slab",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "exterior wall light fixture",
            "category": "prop",
            "position_hint": "on the entry facade beside the metal door",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "roof drain channel",
            "category": "prop",
            "position_hint": "near the edge of the threshold landing beside the stair top",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "half-open door condition",
            "category": "opening",
            "position_hint": "at the metal entry door location, tied to the urgent night arrival state; do not draw on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "foul odor cue at threshold",
            "category": "prop",
            "position_hint": "around the threshold landing and door gap; do not draw on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L08B01": {
        "bg_id": "L08B01",
        "fp_id": "fp_l08_storefront_main",
        "use_numbered_elements": [
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 3,
            "label": "storefront facade sign band",
            "category": "prop",
            "position_hint": "along the south exterior wall above the glass frontage line",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "automatic sliding entrance doors",
            "category": "opening",
            "position_hint": "center of the south facade, opening from sidewalk into threshold vestibule",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "left glass display window",
            "category": "opening",
            "position_hint": "south facade, left of the entrance doors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "right glass display window",
            "category": "opening",
            "position_hint": "south facade, right of the entrance doors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "threshold vestibule",
            "category": "area",
            "position_hint": "immediately inside the entrance doors, between exterior sidewalk and sales floor",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "interior sales entrance zone",
            "category": "area",
            "position_hint": "north of the threshold vestibule, occupying the main interior area of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "left promotional display island",
            "category": "furniture",
            "position_hint": "inside sales entrance zone, left side of the central aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "right promotional display island",
            "category": "furniture",
            "position_hint": "inside sales entrance zone, right side of the central aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "front service or checkout counter",
            "category": "furniture",
            "position_hint": "interior sales entrance zone, near the right wall behind the display window",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "exterior bicycle parking rail",
            "category": "prop",
            "position_hint": "outside on sidewalk frontage, left of the entrance doors",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "facade-mounted CCTV camera",
            "category": "prop",
            "position_hint": "upper corner of the storefront facade, aimed toward the entrance and sidewalk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "temporary restocking boxes and staff activity cue",
            "category": "prop",
            "position_hint": "inside sales entrance zone near the promotional display islands; overlay only, not drawn on the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "temporarily parked bicycle",
            "category": "prop",
            "position_hint": "outside near the bicycle parking rail by the storefront entrance; overlay only, not drawn on the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          7,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([7, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L08B02": {
        "bg_id": "L08B02",
        "fp_id": "fp_l08_storefront_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          12,
          13
        ],
        "ignore_numbered_elements": [
          14,
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "exterior sidewalk frontage",
            "category": "area",
            "position_hint": "south side of plan, directly outside the storefront facade",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "curbside traffic and loading lane",
            "category": "area",
            "position_hint": "far south edge of plan, parallel to the storefront sidewalk",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "storefront facade sign band",
            "category": "prop",
            "position_hint": "along the south exterior wall above the glass frontage line",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "automatic sliding entrance doors",
            "category": "opening",
            "position_hint": "center of the south facade, opening from sidewalk into threshold vestibule",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "left glass display window",
            "category": "opening",
            "position_hint": "south facade, left of the entrance doors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "right glass display window",
            "category": "opening",
            "position_hint": "south facade, right of the entrance doors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "threshold vestibule",
            "category": "area",
            "position_hint": "immediately inside the entrance doors, between exterior sidewalk and sales floor",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "exterior bicycle parking rail",
            "category": "prop",
            "position_hint": "outside on sidewalk frontage, left of the entrance doors",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "facade-mounted CCTV camera",
            "category": "prop",
            "position_hint": "upper corner of the storefront facade, aimed toward the entrance and sidewalk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 14,
            "label": "temporary restocking boxes and staff activity cue",
            "category": "prop",
            "position_hint": "inside sales entrance zone near the promotional display islands; overlay only, not drawn on the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "temporarily parked bicycle",
            "category": "prop",
            "position_hint": "outside near the bicycle parking rail by the storefront entrance; overlay only, not drawn on the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L09B02": {
        "bg_id": "L09B02",
        "fp_id": "fp_l09_sales_floor_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared sales floor zone",
            "category": "area",
            "position_hint": "large central public sales floor occupying most of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "employee restocking aisle",
            "category": "area",
            "position_hint": "narrow service circulation strip along the east side of the shelving rows",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "front entrance threshold zone",
            "category": "area",
            "position_hint": "south center just inside the storefront entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "sliding glass entrance doors",
            "category": "opening",
            "position_hint": "south wall center, opening from exterior into the entrance threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "front glass window panels",
            "category": "opening",
            "position_hint": "south wall on both sides of the sliding entrance doors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "checkout counter bank",
            "category": "furniture",
            "position_hint": "front southwest side between entrance threshold and sales floor",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "customer service counter",
            "category": "furniture",
            "position_hint": "front southeast side near the employee aisle and entrance threshold",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "central gondola shelving row west",
            "category": "furniture",
            "position_hint": "middle of sales floor, long north-south shelf row west of the main aisle",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "central gondola shelving row east",
            "category": "furniture",
            "position_hint": "middle of sales floor, long north-south shelf row beside the employee restocking aisle",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "produce display island",
            "category": "furniture",
            "position_hint": "front-middle area between checkout counters and central shelving rows",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "perimeter refrigerated cases",
            "category": "furniture",
            "position_hint": "north and west perimeter walls of the sales floor",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "rear staff utility zone",
            "category": "area",
            "position_hint": "north east rear block behind the sales floor edge",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "staff-only stockroom swing door",
            "category": "opening",
            "position_hint": "north end of the employee restocking aisle, connecting to the rear staff utility zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "ceiling CCTV dome camera",
            "category": "prop",
            "position_hint": "front half of the sales floor near the line between the entrance threshold and central aisles",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "temporary restocking boxes and cart",
            "category": "prop",
            "position_hint": "in the employee restocking aisle beside the central east shelving row",
            "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,
          12
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 12]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L16B01": {
        "bg_id": "L16B01",
        "fp_id": "fp_l16_admin_office_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared office work area",
            "category": "area",
            "position_hint": "central main rectangle of the admin office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "CCTV review zone",
            "category": "area",
            "position_hint": "north side of the admin office, concentrated around the review desk and monitor wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance door from service corridor",
            "category": "opening",
            "position_hint": "south wall of the admin office, slightly west of center, with inward door swing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "service corridor threshold",
            "category": "area",
            "position_hint": "narrow area immediately outside the south entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "CCTV review desk",
            "category": "furniture",
            "position_hint": "north wall of the CCTV review zone, desk facing south into the room",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "multi-monitor CCTV station",
            "category": "prop",
            "position_hint": "mounted or placed along the north wall directly above or behind the CCTV review desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "operator swivel chair",
            "category": "furniture",
            "position_hint": "in front of the CCTV review desk, centered below the monitor station",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "visitor chairs for viewing",
            "category": "furniture",
            "position_hint": "behind the operator chair in the central office area, facing the CCTV review desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "general staff desk",
            "category": "furniture",
            "position_hint": "east side of the shared office work area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "filing cabinet row",
            "category": "furniture",
            "position_hint": "west wall of the shared office work area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "copier and printer station",
            "category": "prop",
            "position_hint": "southwest corner inside the office near the entrance",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "wall notice board",
            "category": "prop",
            "position_hint": "east wall above or beside the general staff desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "interior glass partition window",
            "category": "opening",
            "position_hint": "south wall beside the entrance door, looking toward the service corridor threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "CCTV equipment cabinet",
            "category": "prop",
            "position_hint": "northwest corner near the CCTV review zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "small meeting table",
            "category": "furniture",
            "position_hint": "southeast part of the shared office work area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 16,
            "label": "dark obscured CCTV playback segment",
            "category": "prop",
            "position_hint": "inside the screens of the multi-monitor CCTV station at number 6 during the review moment",
            "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,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L14B02": {
        "bg_id": "L14B02",
        "fp_id": "fp_detective_office_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          19
        ],
        "ignore_numbered_elements": [
          20,
          21
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Shared workstation area",
            "category": "area",
            "position_hint": "central open office area containing most detective desks",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Entry circulation area",
            "category": "area",
            "position_hint": "southwest strip from main door into the desk cluster",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Support paperwork and storage area",
            "category": "area",
            "position_hint": "north and northwest side of the office along filing and case-board wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Service refreshment and print area",
            "category": "area",
            "position_hint": "southeast corner near copier and coffee station",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Main office door",
            "category": "opening",
            "position_hint": "southwest wall, opening inward into entry circulation area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "East exterior window band",
            "category": "opening",
            "position_hint": "long east wall beside the main workstation area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "North meeting corridor door",
            "category": "opening",
            "position_hint": "north wall near support paperwork and storage area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Central paired detective desks",
            "category": "furniture",
            "position_hint": "middle of shared workstation area, two opposing desk rectangles",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Lead detective desk",
            "category": "furniture",
            "position_hint": "south-central side of shared workstation area, facing inward toward visitor chair",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Duty detective desk",
            "category": "furniture",
            "position_hint": "northeast side of shared workstation area, angled toward central circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Visitor chair beside lead desk",
            "category": "furniture",
            "position_hint": "in front of lead detective desk, near south-central circulation edge",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Duty desk computer monitor",
            "category": "prop",
            "position_hint": "on duty detective desk, facing inward from the northeast workstation",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Desk monitor group",
            "category": "prop",
            "position_hint": "on central paired detective desks in the middle of the shared workstation area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Evidence filing cabinets",
            "category": "furniture",
            "position_hint": "northwest wall of support paperwork and storage area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Wall case board",
            "category": "prop",
            "position_hint": "north wall above or beside filing cabinets",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Printer copier station",
            "category": "prop",
            "position_hint": "southeast service area against the wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Coffee station",
            "category": "prop",
            "position_hint": "southeast service area next to printer copier station",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Wall clock",
            "category": "prop",
            "position_hint": "upper wall visible from lead desk and central workstation area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 19,
            "label": "Smartphone showing saved phone number",
            "category": "prop",
            "position_hint": "temporary cue near duty desk interaction area; not drawn on base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 20,
            "label": "Scattered crime scene photographs",
            "category": "prop",
            "position_hint": "temporary cue spread across lead detective desk; not drawn on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Location tracking result on monitor",
            "category": "prop",
            "position_hint": "temporary screen content on duty desk computer monitor; not drawn on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L14B01": {
        "bg_id": "L14B01",
        "fp_id": "fp_detective_office_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          20,
          21
        ],
        "ignore_numbered_elements": [
          19
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Shared workstation area",
            "category": "area",
            "position_hint": "central open office area containing most detective desks",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Entry circulation area",
            "category": "area",
            "position_hint": "southwest strip from main door into the desk cluster",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Support paperwork and storage area",
            "category": "area",
            "position_hint": "north and northwest side of the office along filing and case-board wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Service refreshment and print area",
            "category": "area",
            "position_hint": "southeast corner near copier and coffee station",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Main office door",
            "category": "opening",
            "position_hint": "southwest wall, opening inward into entry circulation area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "East exterior window band",
            "category": "opening",
            "position_hint": "long east wall beside the main workstation area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "North meeting corridor door",
            "category": "opening",
            "position_hint": "north wall near support paperwork and storage area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Central paired detective desks",
            "category": "furniture",
            "position_hint": "middle of shared workstation area, two opposing desk rectangles",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Lead detective desk",
            "category": "furniture",
            "position_hint": "south-central side of shared workstation area, facing inward toward visitor chair",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Duty detective desk",
            "category": "furniture",
            "position_hint": "northeast side of shared workstation area, angled toward central circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Visitor chair beside lead desk",
            "category": "furniture",
            "position_hint": "in front of lead detective desk, near south-central circulation edge",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Duty desk computer monitor",
            "category": "prop",
            "position_hint": "on duty detective desk, facing inward from the northeast workstation",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Desk monitor group",
            "category": "prop",
            "position_hint": "on central paired detective desks in the middle of the shared workstation area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Evidence filing cabinets",
            "category": "furniture",
            "position_hint": "northwest wall of support paperwork and storage area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Wall case board",
            "category": "prop",
            "position_hint": "north wall above or beside filing cabinets",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Printer copier station",
            "category": "prop",
            "position_hint": "southeast service area against the wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Coffee station",
            "category": "prop",
            "position_hint": "southeast service area next to printer copier station",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Wall clock",
            "category": "prop",
            "position_hint": "upper wall visible from lead desk and central workstation area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 20,
            "label": "Scattered crime scene photographs",
            "category": "prop",
            "position_hint": "temporary cue spread across lead detective desk; not drawn on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Location tracking result on monitor",
            "category": "prop",
            "position_hint": "temporary screen content on duty desk computer monitor; not drawn on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 19,
            "label": "Smartphone showing saved phone number",
            "category": "prop",
            "position_hint": "temporary cue near duty desk interaction area; not drawn on base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L21B01": {
        "bg_id": "L21B01",
        "fp_id": "fp_pilot_house",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "pilot house interior",
            "category": "area",
            "position_hint": "central cramped cabin footprint inside the boat wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "forward helm console",
            "category": "prop",
            "position_hint": "forward wall, slightly starboard of center",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "steering wheel and throttle",
            "category": "prop",
            "position_hint": "mounted on number 2 at the forward console face",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "captain pedestal seat",
            "category": "furniture",
            "position_hint": "immediately aft of the helm console, centered in the narrow aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "forward windshield",
            "category": "opening",
            "position_hint": "continuous window band along the forward wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "port sliding window",
            "category": "opening",
            "position_hint": "port side wall, forward half of the pilot house",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "starboard sliding window",
            "category": "opening",
            "position_hint": "starboard side wall, forward half of the pilot house",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "aft sliding entrance door",
            "category": "opening",
            "position_hint": "aft wall, slightly port of center, opening to the rear deck threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "port bench and storage locker",
            "category": "furniture",
            "position_hint": "port side wall, aft half of the pilot house",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "electronics and radio panel",
            "category": "prop",
            "position_hint": "forward starboard corner beside the helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "starboard dark wall panel",
            "category": "area",
            "position_hint": "starboard aft interior wall surface, opposite the bench/storage locker",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "old printed photograph clue",
            "category": "prop",
            "position_hint": "temporary clue held or placed near the helm console, not part of the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "blood-red circular wall symbols",
            "category": "prop",
            "position_hint": "temporary or subjective markings appearing on the starboard dark wall panel, not part of the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          11
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 11]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "a4f9fe4b-3868-4e73-9c49-d68c6634ddde",
  "resolved_model": "gpt",
  "updated_at": "2026-06-30T09:57:38.761704+00:00",
  "project_config_snapshot": {}
}