{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "87859d7fae867cc1",
  "data": {
    "overlays": {
      "L04B02": {
        "bg_id": "L04B02",
        "fp_id": "fp_l04_exterior_site",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13
        ],
        "ignore_numbered_elements": [
          14,
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "public alley lane",
            "category": "area",
            "position_hint": "south edge of the site, outside the villa lot",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "main villa building footprint",
            "category": "area",
            "position_hint": "central mass facing the alley",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "ground entry gate",
            "category": "opening",
            "position_hint": "south side of the building lot, opening from the alley into the property",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "small rear courtyard",
            "category": "area",
            "position_hint": "northwest rear pocket of the lot behind the building mass",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "exterior stair to roof",
            "category": "area",
            "position_hint": "west side of the building, running from ground entry toward rooftop level",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop terrace slab",
            "category": "area",
            "position_hint": "upper roof area surrounding the rooftop room block",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "rooftop room block",
            "category": "area",
            "position_hint": "northeast portion of the rooftop terrace",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "rooftop metal entrance door",
            "category": "opening",
            "position_hint": "west face of the rooftop room block at the stair landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "small rooftop room window",
            "category": "opening",
            "position_hint": "south or southeast wall of the rooftop room block, visible from the exterior wall and alley side",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "boundary wall and roof parapet",
            "category": "area",
            "position_hint": "perimeter of the lot and rooftop edge, strongest along the foreground exterior wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "north side of the rooftop terrace near the parapet",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "fixed rooftop clothesline",
            "category": "prop",
            "position_hint": "open rooftop terrace area between the water tank and rooftop room",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "low rooftop platform bench",
            "category": "furniture",
            "position_hint": "central open rooftop terrace near the clothesline",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 14,
            "label": "black cat on wall",
            "category": "prop",
            "position_hint": "on the foreground boundary wall, looking toward the rooftop room window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "lit rooftop window glow",
            "category": "prop",
            "position_hint": "at the small rooftop room window during the dawn exterior view",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          4,
          5,
          6,
          7,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4, 5, 6, 7, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B01": {
        "bg_id": "L05B01",
        "fp_id": "fp_l05_main_unit",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          14,
          15,
          20,
          21,
          22,
          23,
          29
        ],
        "ignore_numbered_elements": [
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39,
          40,
          41
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Entrance threshold zone",
            "category": "area",
            "position_hint": "southwest edge, just inside the rooftop-side entrance",
            "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 main room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Kitchenette service strip",
            "category": "area",
            "position_hint": "west side of shared zone along the plumbing wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Daughter bedroom private zone",
            "category": "area",
            "position_hint": "east side of plan, entered from shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Mother bedroom private zone",
            "category": "area",
            "position_hint": "north side of plan, adjacent to shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Bathroom service zone",
            "category": "area",
            "position_hint": "northwest corner beside kitchenette plumbing wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Iron entrance door",
            "category": "opening",
            "position_hint": "southwest exterior wall, opening into entrance threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Small shared-zone window",
            "category": "opening",
            "position_hint": "south wall of shared living dining zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Daughter bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Mother bedroom door",
            "category": "opening",
            "position_hint": "north side of shared zone, opening into mother bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Bathroom door",
            "category": "opening",
            "position_hint": "northwest side of shared zone, opening into bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Kitchen sink and faucet",
            "category": "prop",
            "position_hint": "west wall of kitchenette strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Cooking counter with stovetop",
            "category": "prop",
            "position_hint": "west wall of kitchenette strip, beside sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Dining table",
            "category": "furniture",
            "position_hint": "center of shared living dining zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Dining chairs set",
            "category": "furniture",
            "position_hint": "around dining table in shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "Television and low stand",
            "category": "furniture",
            "position_hint": "south or southeast wall of shared living zone facing dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Living floor lamp",
            "category": "furniture",
            "position_hint": "corner of shared zone near television side",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 29,
            "label": "Daytime herb pot and drink setup",
            "category": "prop",
            "position_hint": "kitchen counter, sink, stovetop, and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 30,
            "label": "Night cooled pot and two cups setup",
            "category": "prop",
            "position_hint": "kitchenette and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Blood traces and footprints in daughter bedroom",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading toward curtained window; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Deceased person behind curtain",
            "category": "prop",
            "position_hint": "behind daughter bedroom curtain near number 12; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle on daughter bedroom wall",
            "category": "prop",
            "position_hint": "wall above or near daughter bed; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Crumpled evidence photo at curtain area",
            "category": "prop",
            "position_hint": "near deceased person and curtain area in daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Shifted backpack and doll state",
            "category": "prop",
            "position_hint": "daughter bedroom, slightly offset from usual resting place number 28; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Red circle hallucination in bathroom mirror",
            "category": "prop",
            "position_hint": "bathroom mirror reflection area at number 19; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Distorted family photo hallucination",
            "category": "prop",
            "position_hint": "on or near dining table in shared zone; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Ransacked footprints and scattered goods",
            "category": "prop",
            "position_hint": "across shared living dining zone and into daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around dining table in shared zone; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "Open window and rattling entrance door state",
            "category": "opening",
            "position_hint": "small shared-zone window number 8 and entrance door number 7; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 41,
            "label": "Old evidence photo pinned or held close",
            "category": "prop",
            "position_hint": "daughter bedroom wall or close evidence view; overlay only, not drawn on 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,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B06": {
        "bg_id": "L04B06",
        "fp_id": "fp_l04_rooftop_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop deck shared zone",
            "category": "area",
            "position_hint": "central open rooftop deck area inside the parapet",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room exterior mass",
            "category": "area",
            "position_hint": "east side of the roof, rectangular enclosed room footprint facing the deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "stair landing threshold",
            "category": "area",
            "position_hint": "southwest corner approach from the rooftop stair",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "west-facing wall of the rooftop room exterior mass, opening onto the deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "window frontage",
            "category": "opening",
            "position_hint": "same west-facing wall of the rooftop room exterior mass, north of the iron entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "northwest utility corner of the rooftop deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "fixed clothesline",
            "category": "prop",
            "position_hint": "spanning the open deck from the northwest utility side toward the southeast side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "left-center of the deck below the clothesline, between the water tank and the entrance door",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low parapet perimeter",
            "category": "area",
            "position_hint": "outer boundary around the rooftop deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "unknown intruder at entrance",
            "category": "prop",
            "position_hint": "on the deck directly in front of the iron entrance door",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "flyer used in door gap",
            "category": "prop",
            "position_hint": "caught at the edge of the iron entrance door near the latch side",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "door left ajar state",
            "category": "opening",
            "position_hint": "at the iron entrance door, showing the door not fully closed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "reflected attack shape in window",
            "category": "prop",
            "position_hint": "on the window frontage surface facing the deck",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "wind-scattered dried leaves",
            "category": "prop",
            "position_hint": "across the deck near the drying platform and in front of the iron entrance door",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B03": {
        "bg_id": "L04B03",
        "fp_id": "fp_l04_exterior_stairs",
        "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": "rear yard utility area",
            "category": "area",
            "position_hint": "southwest lower edge of the plan, at the foot of the exterior stairs",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "lower exterior stair run",
            "category": "area",
            "position_hint": "south side of building wall, rising from rear yard toward the middle landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "middle stair landing",
            "category": "area",
            "position_hint": "center-left of the plan, between lower and upper stair runs",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "upper rooftop landing",
            "category": "area",
            "position_hint": "north side of the plan, directly before the rooftop door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "rooftop metal door",
            "category": "opening",
            "position_hint": "north wall of the rooftop room, opening onto the upper rooftop landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop room exterior wall mass",
            "category": "area",
            "position_hint": "east and north side of the stair zone, drawn as the fixed building outline beside the stairs",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "continuous stair handrail",
            "category": "prop",
            "position_hint": "outer edge of the exterior stair run and landings",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "low rooftop parapet",
            "category": "prop",
            "position_hint": "northwest and west edge of the rooftop landing area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "small exterior window",
            "category": "opening",
            "position_hint": "east building wall near the upper stair run, before the rooftop door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "northwest corner of the rooftop utility area beyond the upper landing",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "fixed rooftop clothesline",
            "category": "prop",
            "position_hint": "west side of the rooftop utility area, near the parapet",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "low rooftop platform",
            "category": "furniture",
            "position_hint": "northwest rooftop utility area, near the water tank and clothesline",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "hastily parked bicycle",
            "category": "prop",
            "position_hint": "rear yard near number 1, loosely placed at the bottom of the stairs",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "foul smell cue at stair top",
            "category": "prop",
            "position_hint": "upper stair run and rooftop landing near number 4",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "door half-open state",
            "category": "opening",
            "position_hint": "at number 5, showing the rooftop metal door left partly open for this 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,
          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)"
        ]
      },
      "L04B04": {
        "bg_id": "L04B04",
        "fp_id": "fp_l04_rooftop_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          12
        ],
        "ignore_numbered_elements": [
          10,
          11,
          13,
          14
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop deck shared zone",
            "category": "area",
            "position_hint": "central open rooftop deck area inside the parapet",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room exterior mass",
            "category": "area",
            "position_hint": "east side of the roof, rectangular enclosed room footprint facing the deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "stair landing threshold",
            "category": "area",
            "position_hint": "southwest corner approach from the rooftop stair",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "west-facing wall of the rooftop room exterior mass, opening onto the deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "window frontage",
            "category": "opening",
            "position_hint": "same west-facing wall of the rooftop room exterior mass, north of the iron entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "northwest utility corner of the rooftop deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "fixed clothesline",
            "category": "prop",
            "position_hint": "spanning the open deck from the northwest utility side toward the southeast side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "left-center of the deck below the clothesline, between the water tank and the entrance door",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low parapet perimeter",
            "category": "area",
            "position_hint": "outer boundary around the rooftop deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "door left ajar state",
            "category": "opening",
            "position_hint": "at the iron entrance door, showing the door not fully closed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 10,
            "label": "unknown intruder at entrance",
            "category": "prop",
            "position_hint": "on the deck directly in front of the iron entrance door",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "flyer used in door gap",
            "category": "prop",
            "position_hint": "caught at the edge of the iron entrance door near the latch side",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "reflected attack shape in window",
            "category": "prop",
            "position_hint": "on the window frontage surface facing the deck",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "wind-scattered dried leaves",
            "category": "prop",
            "position_hint": "across the deck near the drying platform and in front of the iron entrance door",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B05": {
        "bg_id": "L05B05",
        "fp_id": "fp_l05_main_unit",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          7,
          8,
          9,
          10,
          12,
          14,
          15,
          20,
          21,
          22,
          23,
          24,
          26,
          28,
          30,
          31,
          32,
          33,
          34
        ],
        "ignore_numbered_elements": [
          29,
          35,
          36,
          37,
          38,
          39,
          40,
          41
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Entrance threshold zone",
            "category": "area",
            "position_hint": "southwest edge, just inside the rooftop-side entrance",
            "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 main room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Kitchenette service strip",
            "category": "area",
            "position_hint": "west side of shared zone along the plumbing wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Daughter bedroom private zone",
            "category": "area",
            "position_hint": "east side of plan, entered from shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Mother bedroom private zone",
            "category": "area",
            "position_hint": "north side of plan, adjacent to shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Iron entrance door",
            "category": "opening",
            "position_hint": "southwest exterior wall, opening into entrance threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Small shared-zone window",
            "category": "opening",
            "position_hint": "south wall of shared living dining zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Daughter bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Mother bedroom door",
            "category": "opening",
            "position_hint": "north side of shared zone, opening into mother bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Daughter bedroom curtained window",
            "category": "opening",
            "position_hint": "east exterior wall of daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Kitchen sink and faucet",
            "category": "prop",
            "position_hint": "west wall of kitchenette strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Cooking counter with stovetop",
            "category": "prop",
            "position_hint": "west wall of kitchenette strip, beside sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Dining table",
            "category": "furniture",
            "position_hint": "center of shared living dining zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Dining chairs set",
            "category": "furniture",
            "position_hint": "around dining table in shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "Television and low stand",
            "category": "furniture",
            "position_hint": "south or southeast wall of shared living zone facing dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "Living floor lamp",
            "category": "furniture",
            "position_hint": "corner of shared zone near television side",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Daughter bed",
            "category": "furniture",
            "position_hint": "inside daughter bedroom along south or east wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Daughter wardrobe and storage shelves",
            "category": "furniture",
            "position_hint": "inside daughter bedroom along wall opposite bed",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Backpack and small doll usual resting place",
            "category": "prop",
            "position_hint": "inside daughter bedroom near bed or storage shelves",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 30,
            "label": "Night cooled pot and two cups setup",
            "category": "prop",
            "position_hint": "kitchenette and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Blood traces and footprints in daughter bedroom",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading toward curtained window; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Deceased person behind curtain",
            "category": "prop",
            "position_hint": "behind daughter bedroom curtain near number 12; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle on daughter bedroom wall",
            "category": "prop",
            "position_hint": "wall above or near daughter bed; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Crumpled evidence photo at curtain area",
            "category": "prop",
            "position_hint": "near deceased person and curtain area in daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 29,
            "label": "Daytime herb pot and drink setup",
            "category": "prop",
            "position_hint": "kitchen counter, sink, stovetop, and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Shifted backpack and doll state",
            "category": "prop",
            "position_hint": "daughter bedroom, slightly offset from usual resting place number 28; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Red circle hallucination in bathroom mirror",
            "category": "prop",
            "position_hint": "bathroom mirror reflection area at number 19; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Distorted family photo hallucination",
            "category": "prop",
            "position_hint": "on or near dining table in shared zone; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Ransacked footprints and scattered goods",
            "category": "prop",
            "position_hint": "across shared living dining zone and into daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around dining table in shared zone; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "Open window and rattling entrance door state",
            "category": "opening",
            "position_hint": "small shared-zone window number 8 and entrance door number 7; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 41,
            "label": "Old evidence photo pinned or held close",
            "category": "prop",
            "position_hint": "daughter bedroom wall or close evidence view; overlay only, not drawn on 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,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B05": {
        "bg_id": "L04B05",
        "fp_id": "fp_l04_yard_entry",
        "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": "shared paved courtyard",
            "category": "area",
            "position_hint": "central yard area between the south gate and the north building facade",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "building entrance door",
            "category": "opening",
            "position_hint": "north building facade, slightly right of center, opening from porch into villa entry",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "rooftop stairwell route",
            "category": "area",
            "position_hint": "northeast side of the entry area, shown as a compact stair rectangle leading upward toward the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "yard gate from alley",
            "category": "opening",
            "position_hint": "south boundary wall, slightly left of center, opening from narrow alley into courtyard",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "fixed bicycle parking rack",
            "category": "prop",
            "position_hint": "rear left or northwest corner of the courtyard, tucked beside the wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "low boundary wall and fence",
            "category": "area",
            "position_hint": "around the courtyard perimeter, with break at the south gate and building facade at the north",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "small exterior entry porch",
            "category": "area",
            "position_hint": "directly outside number 2 on the north side of the courtyard",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "narrow alley vehicle pull-up strip",
            "category": "area",
            "position_hint": "outside the south boundary, running east-west along the bottom edge of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "ground floor facade window",
            "category": "opening",
            "position_hint": "north building facade, left of the entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "intercom and mailbox fixture",
            "category": "prop",
            "position_hint": "mounted on the north facade near number 2, beside the entry porch",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "temporary police car arrival position",
            "category": "prop",
            "position_hint": "on number 8 near the yard gate, angled toward the courtyard entrance",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "temporary emergency light wash",
            "category": "prop",
            "position_hint": "across the south gate, courtyard paving, and lower building facade during police arrival",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "hastily parked bicycle",
            "category": "prop",
            "position_hint": "leaning in or near number 5 at the rear corner of the courtyard",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          3,
          6,
          7,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 6, 7, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B06": {
        "bg_id": "L05B06",
        "fp_id": "fp_l05_main_unit",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          14,
          15,
          20,
          21,
          22,
          24,
          25,
          26,
          28,
          35
        ],
        "ignore_numbered_elements": [
          29,
          30,
          31,
          32,
          33,
          34,
          36,
          37,
          38,
          39,
          40,
          41
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Entrance threshold zone",
            "category": "area",
            "position_hint": "southwest edge, just inside the rooftop-side entrance",
            "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 main room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Kitchenette service strip",
            "category": "area",
            "position_hint": "west side of shared zone along the plumbing wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Daughter bedroom private zone",
            "category": "area",
            "position_hint": "east side of plan, entered from shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Mother bedroom private zone",
            "category": "area",
            "position_hint": "north side of plan, adjacent to shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Bathroom service zone",
            "category": "area",
            "position_hint": "northwest corner beside kitchenette plumbing wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Iron entrance door",
            "category": "opening",
            "position_hint": "southwest exterior wall, opening into entrance threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Small shared-zone window",
            "category": "opening",
            "position_hint": "south wall of shared living dining zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Daughter bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Mother bedroom door",
            "category": "opening",
            "position_hint": "north side of shared zone, opening into mother bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Bathroom door",
            "category": "opening",
            "position_hint": "northwest side of shared zone, opening into bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Daughter bedroom curtained window",
            "category": "opening",
            "position_hint": "east exterior wall of daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Kitchen sink and faucet",
            "category": "prop",
            "position_hint": "west wall of kitchenette strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Cooking counter with stovetop",
            "category": "prop",
            "position_hint": "west wall of kitchenette strip, beside sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Dining table",
            "category": "furniture",
            "position_hint": "center of shared living dining zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Dining chairs set",
            "category": "furniture",
            "position_hint": "around dining table in shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "Television and low stand",
            "category": "furniture",
            "position_hint": "south or southeast wall of shared living zone facing dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Daughter bed",
            "category": "furniture",
            "position_hint": "inside daughter bedroom along south or east wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Mother bed",
            "category": "furniture",
            "position_hint": "inside mother bedroom along north wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Daughter wardrobe and storage shelves",
            "category": "furniture",
            "position_hint": "inside daughter bedroom along wall opposite bed",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Backpack and small doll usual resting place",
            "category": "prop",
            "position_hint": "inside daughter bedroom near bed or storage shelves",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 35,
            "label": "Shifted backpack and doll state",
            "category": "prop",
            "position_hint": "daughter bedroom, slightly offset from usual resting place number 28; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 29,
            "label": "Daytime herb pot and drink setup",
            "category": "prop",
            "position_hint": "kitchen counter, sink, stovetop, and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Night cooled pot and two cups setup",
            "category": "prop",
            "position_hint": "kitchenette and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Blood traces and footprints in daughter bedroom",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading toward curtained window; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Deceased person behind curtain",
            "category": "prop",
            "position_hint": "behind daughter bedroom curtain near number 12; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle on daughter bedroom wall",
            "category": "prop",
            "position_hint": "wall above or near daughter bed; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Crumpled evidence photo at curtain area",
            "category": "prop",
            "position_hint": "near deceased person and curtain area in daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Red circle hallucination in bathroom mirror",
            "category": "prop",
            "position_hint": "bathroom mirror reflection area at number 19; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Distorted family photo hallucination",
            "category": "prop",
            "position_hint": "on or near dining table in shared zone; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Ransacked footprints and scattered goods",
            "category": "prop",
            "position_hint": "across shared living dining zone and into daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around dining table in shared zone; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "Open window and rattling entrance door state",
            "category": "opening",
            "position_hint": "small shared-zone window number 8 and entrance door number 7; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 41,
            "label": "Old evidence photo pinned or held close",
            "category": "prop",
            "position_hint": "daughter bedroom wall or close evidence view; overlay only, not drawn on 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,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B01": {
        "bg_id": "L04B01",
        "fp_id": "fp_l04_exterior_site",
        "use_numbered_elements": [
          2,
          6,
          7,
          9,
          10,
          14,
          15
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "main villa building footprint",
            "category": "area",
            "position_hint": "central mass facing the alley",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop terrace slab",
            "category": "area",
            "position_hint": "upper roof area surrounding the rooftop room block",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "rooftop room block",
            "category": "area",
            "position_hint": "northeast portion of the rooftop terrace",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "small rooftop room window",
            "category": "opening",
            "position_hint": "south or southeast wall of the rooftop room block, visible from the exterior wall and alley side",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "boundary wall and roof parapet",
            "category": "area",
            "position_hint": "perimeter of the lot and rooftop edge, strongest along the foreground exterior wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "black cat on wall",
            "category": "prop",
            "position_hint": "on the foreground boundary wall, looking toward the rooftop room window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "lit rooftop window glow",
            "category": "prop",
            "position_hint": "at the small rooftop room window during the dawn exterior view",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          2,
          6,
          7,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 6, 7, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B04": {
        "bg_id": "L05B04",
        "fp_id": "fp_l05_main_unit",
        "use_numbered_elements": [
          2,
          3,
          4,
          5,
          6,
          8,
          9,
          10,
          11,
          12,
          13,
          16,
          17,
          18,
          19,
          20,
          24,
          25,
          26,
          28,
          36,
          37
        ],
        "ignore_numbered_elements": [
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          38,
          39,
          40,
          41
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "Shared living dining zone",
            "category": "area",
            "position_hint": "central and south-central main room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Kitchenette service strip",
            "category": "area",
            "position_hint": "west side of shared zone along the plumbing wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Daughter bedroom private zone",
            "category": "area",
            "position_hint": "east side of plan, entered from shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Mother bedroom private zone",
            "category": "area",
            "position_hint": "north side of plan, adjacent to shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Bathroom service zone",
            "category": "area",
            "position_hint": "northwest corner beside kitchenette plumbing wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Small shared-zone window",
            "category": "opening",
            "position_hint": "south wall of shared living dining zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Daughter bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Mother bedroom door",
            "category": "opening",
            "position_hint": "north side of shared zone, opening into mother bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Bathroom door",
            "category": "opening",
            "position_hint": "northwest side of shared zone, opening into bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Daughter bedroom curtained window",
            "category": "opening",
            "position_hint": "east exterior wall of daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Mother bedroom window",
            "category": "opening",
            "position_hint": "north exterior wall of mother bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Bathroom washbasin",
            "category": "prop",
            "position_hint": "inside bathroom near door side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Toilet",
            "category": "prop",
            "position_hint": "inside bathroom against north or west wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Shower niche",
            "category": "prop",
            "position_hint": "inside bathroom far corner",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Bathroom mirror",
            "category": "prop",
            "position_hint": "above bathroom washbasin",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Dining table",
            "category": "furniture",
            "position_hint": "center of shared living dining zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Daughter bed",
            "category": "furniture",
            "position_hint": "inside daughter bedroom along south or east wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "Mother bed",
            "category": "furniture",
            "position_hint": "inside mother bedroom along north wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Daughter wardrobe and storage shelves",
            "category": "furniture",
            "position_hint": "inside daughter bedroom along wall opposite bed",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Backpack and small doll usual resting place",
            "category": "prop",
            "position_hint": "inside daughter bedroom near bed or storage shelves",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 36,
            "label": "Red circle hallucination in bathroom mirror",
            "category": "prop",
            "position_hint": "bathroom mirror reflection area at number 19; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Distorted family photo hallucination",
            "category": "prop",
            "position_hint": "on or near dining table in shared zone; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 29,
            "label": "Daytime herb pot and drink setup",
            "category": "prop",
            "position_hint": "kitchen counter, sink, stovetop, and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Night cooled pot and two cups setup",
            "category": "prop",
            "position_hint": "kitchenette and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Blood traces and footprints in daughter bedroom",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading toward curtained window; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Deceased person behind curtain",
            "category": "prop",
            "position_hint": "behind daughter bedroom curtain near number 12; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle on daughter bedroom wall",
            "category": "prop",
            "position_hint": "wall above or near daughter bed; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Crumpled evidence photo at curtain area",
            "category": "prop",
            "position_hint": "near deceased person and curtain area in daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Shifted backpack and doll state",
            "category": "prop",
            "position_hint": "daughter bedroom, slightly offset from usual resting place number 28; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Ransacked footprints and scattered goods",
            "category": "prop",
            "position_hint": "across shared living dining zone and into daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around dining table in shared zone; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "Open window and rattling entrance door state",
            "category": "opening",
            "position_hint": "small shared-zone window number 8 and entrance door number 7; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 41,
            "label": "Old evidence photo pinned or held close",
            "category": "prop",
            "position_hint": "daughter bedroom wall or close evidence view; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          3,
          4,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 3, 4, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B03": {
        "bg_id": "L05B03",
        "fp_id": "fp_l05_main_unit",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          7,
          8,
          9,
          12,
          14,
          15,
          20,
          21,
          22,
          24,
          26,
          28,
          33,
          38,
          39,
          40,
          41
        ],
        "ignore_numbered_elements": [
          29,
          30,
          31,
          32,
          34,
          35,
          36,
          37
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Entrance threshold zone",
            "category": "area",
            "position_hint": "southwest edge, just inside the rooftop-side entrance",
            "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 main room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Kitchenette service strip",
            "category": "area",
            "position_hint": "west side of shared zone along the plumbing wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "Daughter bedroom private zone",
            "category": "area",
            "position_hint": "east side of plan, entered from shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Iron entrance door",
            "category": "opening",
            "position_hint": "southwest exterior wall, opening into entrance threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Small shared-zone window",
            "category": "opening",
            "position_hint": "south wall of shared living dining zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Daughter bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Daughter bedroom curtained window",
            "category": "opening",
            "position_hint": "east exterior wall of daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Kitchen sink and faucet",
            "category": "prop",
            "position_hint": "west wall of kitchenette strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Cooking counter with stovetop",
            "category": "prop",
            "position_hint": "west wall of kitchenette strip, beside sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Dining table",
            "category": "furniture",
            "position_hint": "center of shared living dining zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Dining chairs set",
            "category": "furniture",
            "position_hint": "around dining table in shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "Television and low stand",
            "category": "furniture",
            "position_hint": "south or southeast wall of shared living zone facing dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Daughter bed",
            "category": "furniture",
            "position_hint": "inside daughter bedroom along south or east wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Daughter wardrobe and storage shelves",
            "category": "furniture",
            "position_hint": "inside daughter bedroom along wall opposite bed",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Backpack and small doll usual resting place",
            "category": "prop",
            "position_hint": "inside daughter bedroom near bed or storage shelves",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 33,
            "label": "Red circle on daughter bedroom wall",
            "category": "prop",
            "position_hint": "wall above or near daughter bed; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Ransacked footprints and scattered goods",
            "category": "prop",
            "position_hint": "across shared living dining zone and into daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around dining table in shared zone; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "Open window and rattling entrance door state",
            "category": "opening",
            "position_hint": "small shared-zone window number 8 and entrance door number 7; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 41,
            "label": "Old evidence photo pinned or held close",
            "category": "prop",
            "position_hint": "daughter bedroom wall or close evidence view; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 29,
            "label": "Daytime herb pot and drink setup",
            "category": "prop",
            "position_hint": "kitchen counter, sink, stovetop, and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Night cooled pot and two cups setup",
            "category": "prop",
            "position_hint": "kitchenette and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Blood traces and footprints in daughter bedroom",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading toward curtained window; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Deceased person behind curtain",
            "category": "prop",
            "position_hint": "behind daughter bedroom curtain near number 12; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Crumpled evidence photo at curtain area",
            "category": "prop",
            "position_hint": "near deceased person and curtain area in daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Shifted backpack and doll state",
            "category": "prop",
            "position_hint": "daughter bedroom, slightly offset from usual resting place number 28; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Red circle hallucination in bathroom mirror",
            "category": "prop",
            "position_hint": "bathroom mirror reflection area at number 19; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Distorted family photo hallucination",
            "category": "prop",
            "position_hint": "on or near dining table in shared zone; overlay only, not drawn on 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)"
        ]
      },
      "L05B02": {
        "bg_id": "L05B02",
        "fp_id": "fp_l05_main_unit",
        "use_numbered_elements": [
          4,
          24,
          41
        ],
        "ignore_numbered_elements": [
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 4,
            "label": "Daughter bedroom private zone",
            "category": "area",
            "position_hint": "east side of plan, entered from shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "Daughter bed",
            "category": "furniture",
            "position_hint": "inside daughter bedroom along south or east wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 41,
            "label": "Old evidence photo pinned or held close",
            "category": "prop",
            "position_hint": "daughter bedroom wall or close evidence view; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 29,
            "label": "Daytime herb pot and drink setup",
            "category": "prop",
            "position_hint": "kitchen counter, sink, stovetop, and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Night cooled pot and two cups setup",
            "category": "prop",
            "position_hint": "kitchenette and dining table area; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Blood traces and footprints in daughter bedroom",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading toward curtained window; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Deceased person behind curtain",
            "category": "prop",
            "position_hint": "behind daughter bedroom curtain near number 12; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Red circle on daughter bedroom wall",
            "category": "prop",
            "position_hint": "wall above or near daughter bed; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Crumpled evidence photo at curtain area",
            "category": "prop",
            "position_hint": "near deceased person and curtain area in daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Shifted backpack and doll state",
            "category": "prop",
            "position_hint": "daughter bedroom, slightly offset from usual resting place number 28; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Red circle hallucination in bathroom mirror",
            "category": "prop",
            "position_hint": "bathroom mirror reflection area at number 19; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Distorted family photo hallucination",
            "category": "prop",
            "position_hint": "on or near dining table in shared zone; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Ransacked footprints and scattered goods",
            "category": "prop",
            "position_hint": "across shared living dining zone and into daughter bedroom; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around dining table in shared zone; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "Open window and rattling entrance door state",
            "category": "opening",
            "position_hint": "small shared-zone window number 8 and entrance door number 7; overlay only, not drawn on floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          4
        ],
        "dominant_target_unit_marker_number": 4,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L09B01": {
        "bg_id": "L09B01",
        "fp_id": "fp_l09_store_main",
        "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": "main shared sales floor zone",
            "category": "area",
            "position_hint": "central and rear majority of the supermarket footprint, filled pale yellow",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance-side circulation zone",
            "category": "area",
            "position_hint": "south/front band just inside the main entrance, filled pale beige",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "checkout service zone",
            "category": "area",
            "position_hint": "front-left area beside the entrance circulation, filled pale cyan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "exterior frontage strip",
            "category": "area",
            "position_hint": "narrow strip outside the south/front wall before the sliding entrance, filled pale gray",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "automatic sliding entrance",
            "category": "opening",
            "position_hint": "center of south/front wall connecting exterior frontage strip to entrance circulation zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "front storefront windows",
            "category": "opening",
            "position_hint": "south/front wall on both sides of the sliding entrance, drawn as double parallel window lines",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "checkout counters",
            "category": "furniture",
            "position_hint": "front-left service zone, two or three rectangular cashier counters facing the entrance circulation",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "parallel dry-goods shelving aisles",
            "category": "furniture",
            "position_hint": "central sales floor, several long north-south shelf rectangles with clear walking aisles between them",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "wall refrigerated display cases",
            "category": "furniture",
            "position_hint": "north/back wall and part of east/right wall, continuous shallow rectangles against the walls",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "produce and promotion island tables",
            "category": "furniture",
            "position_hint": "front-right to mid-right shared sales floor, low rectangular display islands near the entrance circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "staff back-room door",
            "category": "opening",
            "position_hint": "northwest/back-left wall behind or near the checkout/service side, shown with a simple swing door arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "ceiling CCTV dome near entrance",
            "category": "prop",
            "position_hint": "above the front circulation zone near the sliding entrance and checkout sightline, shown as a tiny fixed circular fixture marker",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "temporary stocking boxes",
            "category": "prop",
            "position_hint": "near the central shelving aisles where a staff member is restocking; 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": [
          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)"
        ]
      },
      "L10B01": {
        "bg_id": "L10B01",
        "fp_id": "fp_l10_exterior_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entrance threshold under awning",
            "category": "area",
            "position_hint": "center front of storefront, directly outside the main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "facade wall strip",
            "category": "area",
            "position_hint": "north side of plan, continuous storefront wall behind threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "main sliding entrance doors",
            "category": "opening",
            "position_hint": "center of facade wall, opening onto entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "awning canopy footprint",
            "category": "prop",
            "position_hint": "projecting outward from facade over the entrance threshold",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "wall-mounted CCTV camera",
            "category": "prop",
            "position_hint": "upper right portion of facade wall under or beside awning, aimed toward entrance and bicycle parking",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bicycle parking rack",
            "category": "prop",
            "position_hint": "front-left side of threshold zone, adjacent to public sidewalk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "public sidewalk frontage",
            "category": "area",
            "position_hint": "south half of plan, running across the storefront",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "side wall corner zone",
            "category": "area",
            "position_hint": "right end of facade, forming a narrow exterior corner beside the entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "front display window",
            "category": "opening",
            "position_hint": "left portion of facade wall beside the main entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "curb and road edge",
            "category": "area",
            "position_hint": "outermost south edge of plan beyond the sidewalk",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "temporarily parked bicycle",
            "category": "prop",
            "position_hint": "inside bicycle parking bay near number 6 during the early morning visit",
            "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,
          7,
          8,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 7, 8, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L13B01": {
        "bg_id": "L13B01",
        "fp_id": "fp_l13_office_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared viewing zone",
            "category": "area",
            "position_hint": "central and south-central portion of the office, between entrance and workstation",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "security workstation desk",
            "category": "furniture",
            "position_hint": "north side of the shared zone, facing south into the room",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "CCTV monitor display array",
            "category": "prop",
            "position_hint": "north wall directly above or behind the security workstation desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "viewing chairs",
            "category": "furniture",
            "position_hint": "center of the room, facing north toward the workstation and monitors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "staff entrance door",
            "category": "opening",
            "position_hint": "south wall, slightly west of center, opening inward from staff corridor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "interior observation window",
            "category": "opening",
            "position_hint": "west wall, long narrow glass panel facing the adjacent market or staff corridor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "footage archive cabinet",
            "category": "furniture",
            "position_hint": "east wall near the north-east corner",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "CCTV recorder equipment cabinet",
            "category": "prop",
            "position_hint": "north-east corner beside the monitor wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "copy and printer station",
            "category": "prop",
            "position_hint": "east wall, mid-room, below the archive cabinet area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "low service counter",
            "category": "furniture",
            "position_hint": "south-east side near the threshold zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "service equipment zone",
            "category": "area",
            "position_hint": "east strip of the office containing cabinets, recorder equipment, and printer station",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "inside the south entrance area immediately beyond the staff door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "obscured dark CCTV playback segment",
            "category": "prop",
            "position_hint": "on the monitor screens at number 3 during review; do not draw on the floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "portable footage copy media",
            "category": "prop",
            "position_hint": "temporary small item on or near the workstation desk at number 2 during footage copying; do not draw on the floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          11,
          12
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 11, 12]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L12B02": {
        "bg_id": "L12B02",
        "fp_id": "fp_l12_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          17
        ],
        "ignore_numbered_elements": [
          14,
          15,
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared duty office area",
            "category": "area",
            "position_hint": "central open-plan bullpen occupying most of the room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "corridor threshold zone",
            "category": "area",
            "position_hint": "west side strip just outside and around the main office entry",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "service and storage alcove",
            "category": "area",
            "position_hint": "northeast corner of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "main corridor door",
            "category": "opening",
            "position_hint": "west wall near the southwest corner, swinging inward from corridor into office",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "secondary corridor exit",
            "category": "opening",
            "position_hint": "northwest wall segment, connecting the office to the corridor side",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "exterior window bank",
            "category": "opening",
            "position_hint": "east wall, long double-line window opening beside the duty desks",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "lead detective desk",
            "category": "furniture",
            "position_hint": "southeast quadrant of the shared office, desk facing inward toward the central duty area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "visitor chair at lead desk",
            "category": "furniture",
            "position_hint": "in front of number 7, on the central-office side of the lead detective desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "east-central side of the room near the window bank",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "duty detective computer monitor",
            "category": "prop",
            "position_hint": "on top of number 9, oriented toward the duty detective chair",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "central bullpen desk row",
            "category": "furniture",
            "position_hint": "middle of number 1, arranged as a straight row of shared work desks",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "printer copier station",
            "category": "prop",
            "position_hint": "inside number 3, against the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "wall file cabinet bank",
            "category": "furniture",
            "position_hint": "south wall and southeast wall edge near number 7",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 17,
            "label": "night phone-location request in progress",
            "category": "prop",
            "position_hint": "at number 10 and the desktop area of number 9",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 14,
            "label": "case photo spread on lead desk",
            "category": "prop",
            "position_hint": "on top of number 7, scattered across the desk surface",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "GPS result displayed on duty monitor",
            "category": "prop",
            "position_hint": "inside the screen area of number 10",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "chairs displaced after staff rush out",
            "category": "furniture",
            "position_hint": "around number 11 and near the route from number 1 to number 4",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L12B01": {
        "bg_id": "L12B01",
        "fp_id": "fp_l12_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared duty office area",
            "category": "area",
            "position_hint": "central open-plan bullpen occupying most of the room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "corridor threshold zone",
            "category": "area",
            "position_hint": "west side strip just outside and around the main office entry",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "service and storage alcove",
            "category": "area",
            "position_hint": "northeast corner of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "main corridor door",
            "category": "opening",
            "position_hint": "west wall near the southwest corner, swinging inward from corridor into office",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "secondary corridor exit",
            "category": "opening",
            "position_hint": "northwest wall segment, connecting the office to the corridor side",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "exterior window bank",
            "category": "opening",
            "position_hint": "east wall, long double-line window opening beside the duty desks",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "lead detective desk",
            "category": "furniture",
            "position_hint": "southeast quadrant of the shared office, desk facing inward toward the central duty area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "visitor chair at lead desk",
            "category": "furniture",
            "position_hint": "in front of number 7, on the central-office side of the lead detective desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "east-central side of the room near the window bank",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "duty detective computer monitor",
            "category": "prop",
            "position_hint": "on top of number 9, oriented toward the duty detective chair",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "central bullpen desk row",
            "category": "furniture",
            "position_hint": "middle of number 1, arranged as a straight row of shared work desks",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "printer copier station",
            "category": "prop",
            "position_hint": "inside number 3, against the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "wall file cabinet bank",
            "category": "furniture",
            "position_hint": "south wall and southeast wall edge near number 7",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "case photo spread on lead desk",
            "category": "prop",
            "position_hint": "on top of number 7, scattered across the desk surface",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "GPS result displayed on duty monitor",
            "category": "prop",
            "position_hint": "inside the screen area of number 10",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "chairs displaced after staff rush out",
            "category": "furniture",
            "position_hint": "around number 11 and near the route from number 1 to number 4",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 17,
            "label": "night phone-location request in progress",
            "category": "prop",
            "position_hint": "at number 10 and the desktop area of number 9",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L14B01": {
        "bg_id": "L14B01",
        "fp_id": "fp_l14_front_exterior",
        "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": "public building footprint",
            "category": "area",
            "position_hint": "north third of plan, rectangular station-front building mass",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance forecourt and sidewalk",
            "category": "area",
            "position_hint": "center of plan, directly south of the building frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "main entrance doors",
            "category": "opening",
            "position_hint": "center of south wall of building footprint, opening onto forecourt",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "front window glazing strips",
            "category": "opening",
            "position_hint": "south facade of building, on both sides of the main entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "bicycle parking bay",
            "category": "area",
            "position_hint": "east side of the forecourt, adjacent to sidewalk and near entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "fixed bicycle rack",
            "category": "prop",
            "position_hint": "inside bicycle parking bay, aligned parallel to the building frontage",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "curb edge and street boundary",
            "category": "area",
            "position_hint": "south edge of forecourt, separating sidewalk from roadway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "narrow street or drive lane",
            "category": "area",
            "position_hint": "south strip of plan, running east-west along the frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "entry ramp or low steps",
            "category": "prop",
            "position_hint": "between main entrance doors and forecourt, centered on threshold",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "blank exterior notice or sign panel",
            "category": "prop",
            "position_hint": "on building facade near the main entrance, west side of doors",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "small security camera",
            "category": "prop",
            "position_hint": "upper corner of the building frontage, overlooking entrance forecourt and bicycle parking",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "temporarily parked bicycle being ridden away",
            "category": "prop",
            "position_hint": "overlay-only, initially at bicycle rack in number 5 then departing toward number 8",
            "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,
          5,
          7,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 5, 7, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L17B02": {
        "bg_id": "L17B02",
        "fp_id": "fp_l17_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open working deck zone",
            "category": "area",
            "position_hint": "central and aft portion of boat, largest pale yellow area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "wheelhouse entry threshold zone",
            "category": "area",
            "position_hint": "forward center of open deck directly outside wheelhouse door, pale beige strip",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse footprint",
            "category": "area",
            "position_hint": "forward enclosed cabin block at top of plan, pale blue area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "aft-facing wheelhouse door",
            "category": "opening",
            "position_hint": "center of wheelhouse aft wall, opening from threshold into wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "deck-facing wheelhouse window",
            "category": "opening",
            "position_hint": "aft wall of wheelhouse above or beside the door, shown as double parallel window lines",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "port low bulwark and side passage",
            "category": "area",
            "position_hint": "left side edge of boat deck running fore to aft",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "starboard low bulwark and side passage",
            "category": "area",
            "position_hint": "right side edge of boat deck running fore to aft",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "stern rail opening",
            "category": "opening",
            "position_hint": "aft center edge of boat, small break in stern rail",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rectangular deck hatch",
            "category": "prop",
            "position_hint": "center of open deck slightly aft of threshold",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "fixed storage bench or fish box",
            "category": "furniture",
            "position_hint": "port side of open deck, long rectangle parallel to left bulwark",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "fixed net reel or deck winch",
            "category": "prop",
            "position_hint": "aft service gear zone near stern, slightly off center",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "mooring cleat",
            "category": "prop",
            "position_hint": "forward deck edge near wheelhouse corner, small fixed cleat symbol",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "handheld map or chart sheet",
            "category": "prop",
            "position_hint": "temporary item held out over the open deck confrontation area, not drawn on base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "old photograph used as proof",
            "category": "prop",
            "position_hint": "temporary item shown with the map during the open deck confrontation, 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": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          6,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 6, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L17B01": {
        "bg_id": "L17B01",
        "fp_id": "fp_l17_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [
          13,
          14
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open working deck zone",
            "category": "area",
            "position_hint": "central and aft portion of boat, largest pale yellow area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "wheelhouse entry threshold zone",
            "category": "area",
            "position_hint": "forward center of open deck directly outside wheelhouse door, pale beige strip",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse footprint",
            "category": "area",
            "position_hint": "forward enclosed cabin block at top of plan, pale blue area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "aft-facing wheelhouse door",
            "category": "opening",
            "position_hint": "center of wheelhouse aft wall, opening from threshold into wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "deck-facing wheelhouse window",
            "category": "opening",
            "position_hint": "aft wall of wheelhouse above or beside the door, shown as double parallel window lines",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "port low bulwark and side passage",
            "category": "area",
            "position_hint": "left side edge of boat deck running fore to aft",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "starboard low bulwark and side passage",
            "category": "area",
            "position_hint": "right side edge of boat deck running fore to aft",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "stern rail opening",
            "category": "opening",
            "position_hint": "aft center edge of boat, small break in stern rail",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rectangular deck hatch",
            "category": "prop",
            "position_hint": "center of open deck slightly aft of threshold",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "fixed storage bench or fish box",
            "category": "furniture",
            "position_hint": "port side of open deck, long rectangle parallel to left bulwark",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "fixed net reel or deck winch",
            "category": "prop",
            "position_hint": "aft service gear zone near stern, slightly off center",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "mooring cleat",
            "category": "prop",
            "position_hint": "forward deck edge near wheelhouse corner, small fixed cleat symbol",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "handheld map or chart sheet",
            "category": "prop",
            "position_hint": "temporary item held out over the open deck confrontation area, not drawn on base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "old photograph used as proof",
            "category": "prop",
            "position_hint": "temporary item shown with the map during the open deck confrontation, 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,
          6,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 6, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L18B01": {
        "bg_id": "L18B01",
        "fp_id": "fp_l18_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8
        ],
        "ignore_numbered_elements": [
          10,
          11
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "compact wheelhouse interior",
            "category": "area",
            "position_hint": "main enclosed rectangular cabin area, centered in plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "helm control console",
            "category": "prop",
            "position_hint": "forward north side, slightly starboard of center below the windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "captain chair",
            "category": "furniture",
            "position_hint": "center of wheelhouse, directly aft of the helm control console",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "forward windshield windows",
            "category": "opening",
            "position_hint": "north bow wall spanning most of the front wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "port side sliding window",
            "category": "opening",
            "position_hint": "west wall, forward half of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "starboard side sliding window",
            "category": "opening",
            "position_hint": "east wall, forward half near the marked wall panel area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "aft deck access door",
            "category": "opening",
            "position_hint": "south wall, slightly port of center, opening from deck into wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "chart and radio shelf",
            "category": "prop",
            "position_hint": "starboard wall, narrow fixed shelf between controls and wall panel",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 10,
            "label": "many round wall marks",
            "category": "prop",
            "position_hint": "overlaid across number 9, the starboard interior wall panel; never drawn on the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "large vivid red circle mark",
            "category": "prop",
            "position_hint": "overlaid prominently among the round marks on number 9; never drawn on the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1
        ],
        "dominant_target_unit_marker_number": 1,
        "clean_background_expected": true,
        "diagnostics": []
      },
      "L18B02": {
        "bg_id": "L18B02",
        "fp_id": "fp_l18_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          6,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "compact wheelhouse interior",
            "category": "area",
            "position_hint": "main enclosed rectangular cabin area, centered in plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "helm control console",
            "category": "prop",
            "position_hint": "forward north side, slightly starboard of center below the windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "starboard side sliding window",
            "category": "opening",
            "position_hint": "east wall, forward half near the marked wall panel area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "chart and radio shelf",
            "category": "prop",
            "position_hint": "starboard wall, narrow fixed shelf between controls and wall panel",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "starboard interior wall panel",
            "category": "area",
            "position_hint": "east wall, mid-to-aft solid wall surface used as a persistent background plane",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "many round wall marks",
            "category": "prop",
            "position_hint": "overlaid across number 9, the starboard interior wall panel; never drawn on the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "large vivid red circle mark",
            "category": "prop",
            "position_hint": "overlaid prominently among the round marks on number 9; never drawn on 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,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "91a34dd7-3079-44d8-ad06-5c2bbbe0891d",
  "resolved_model": "gpt",
  "updated_at": "2026-06-18T11:01:11.978823+00:00",
  "project_config_snapshot": {}
}