{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "5d2891ceb277be8d",
  "data": {
    "overlays": {
      "L04B03": {
        "bg_id": "L04B03",
        "fp_id": "fp_l04_rooftop_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared rooftop deck zone",
            "category": "area",
            "position_hint": "central and western roof deck area outside the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room footprint",
            "category": "area",
            "position_hint": "east side of the plan, compact private interior mass shown only as an outline and pale blue fill",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entry threshold landing",
            "category": "area",
            "position_hint": "immediately outside the iron entry door on the west face of the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "water tank utility corner",
            "category": "area",
            "position_hint": "northwest corner of the rooftop deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "low parapet boundary",
            "category": "area",
            "position_hint": "around the outer roof perimeter, especially west and north edges",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "added exterior iron stair arrival",
            "category": "opening",
            "position_hint": "southwest edge of rooftop deck, attached outside the building wall with open treads and pipe rail symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "iron entry door",
            "category": "opening",
            "position_hint": "west wall of rooftop room, opening onto the threshold landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small sliding window",
            "category": "opening",
            "position_hint": "west-facing exterior wall of rooftop room, north of the entry door and visible from the deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "inside the northwest utility corner near the parapet",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "clothesline span",
            "category": "prop",
            "position_hint": "across the north side of the deck, between parapet posts or simple supports",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "on the shared deck near the route from stair arrival to entry door",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "advertising leaflet at door gap",
            "category": "prop",
            "position_hint": "at the latch side of the iron entry door; intrusion-state overlay only, not drawn on base plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "door unlatched and slightly open",
            "category": "opening",
            "position_hint": "same opening as the iron entry door after the lock trick; intrusion-state overlay only, not drawn on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "intruder shoes at threshold",
            "category": "prop",
            "position_hint": "on the deck directly before the iron entry door; intrusion-state overlay only, not drawn on base plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "attack silhouette in window reflection",
            "category": "prop",
            "position_hint": "inside the small sliding window surface; intrusion-state overlay only, not drawn on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "wind-blown dried herb leaves",
            "category": "prop",
            "position_hint": "on and around the low drying platform, with some leaves along the walking path; intrusion-state overlay only, not drawn on base plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5
        ],
        "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)"
        ]
      },
      "L05B01": {
        "bg_id": "L05B01",
        "fp_id": "fp_l05_main_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          11,
          12,
          13,
          14,
          15,
          16,
          22
        ],
        "ignore_numbered_elements": [
          23,
          24,
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold",
            "category": "area",
            "position_hint": "southwest edge of the compact rooftop room, just inside the exterior metal door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared living-dining area",
            "category": "area",
            "position_hint": "central and west side of the unit, connecting entry, kitchen, bedrooms, and bathroom",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette service area",
            "category": "area",
            "position_hint": "northwest side of the shared area, along the outer wall near the living window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "mother bedroom",
            "category": "area",
            "position_hint": "northeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bathroom",
            "category": "area",
            "position_hint": "east side between the shared area and private rooms",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "exterior metal entrance door",
            "category": "opening",
            "position_hint": "southwest exterior wall opening into the entry threshold, drawn with door swing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west or northwest exterior wall of the shared living-dining area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the southeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "mother bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the northeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the east-side bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "fixed into the kitchenette counter along the north or west wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "small stovetop counter",
            "category": "prop",
            "position_hint": "beside the sink in the kitchenette service area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "dining table with chairs",
            "category": "furniture",
            "position_hint": "middle of the shared living-dining area, close to kitchenette and TV sightline",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "TV and low stand",
            "category": "furniture",
            "position_hint": "against the shared-room wall opposite the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 22,
            "label": "small wrist mark on resident",
            "category": "prop",
            "position_hint": "character overlay cue during ordinary shared-room day action, not tied to the floor structure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 23,
            "label": "corpse behind bedroom curtain",
            "category": "prop",
            "position_hint": "daughter bedroom near the curtained window, behind or beside number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "blood pool and bloody footprints",
            "category": "prop",
            "position_hint": "daughter bedroom floor, leading toward the curtained window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "old photo gripped in hand",
            "category": "prop",
            "position_hint": "with the corpse cue near the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "red circle above daughter bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "shifted backpack and doll after reset",
            "category": "prop",
            "position_hint": "daughter bedroom floor or storage spot, slightly different from the discovery-state position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "bathroom mirror red circle hallucination",
            "category": "prop",
            "position_hint": "bathroom mirror reflection and reflected wall near number 19",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "family photo face distortion hallucination",
            "category": "prop",
            "position_hint": "on or near dining table number 15 in the shared living-dining area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "ransacked interior with muddy footprints",
            "category": "prop",
            "position_hint": "across entry, shared room, dining table, living window, and daughter bedroom doorway",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "blood-stained photo pinned in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18, centered inside the wall-circle clue",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "two teacups, one overturned",
            "category": "prop",
            "position_hint": "on dining table number 15 during the discovery sequence",
            "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)"
        ]
      },
      "L05B06": {
        "bg_id": "L05B06",
        "fp_id": "fp_l05_main_interior",
        "use_numbered_elements": [
          2,
          3,
          4,
          5,
          7,
          8,
          9,
          10,
          11,
          13,
          14,
          15,
          16,
          17,
          18,
          23,
          24,
          25,
          32
        ],
        "ignore_numbered_elements": [
          22,
          26,
          27,
          28,
          29,
          30,
          31
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "shared living-dining area",
            "category": "area",
            "position_hint": "central and west side of the unit, connecting entry, kitchen, bedrooms, and bathroom",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette service area",
            "category": "area",
            "position_hint": "northwest side of the shared area, along the outer wall near the living window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "mother bedroom",
            "category": "area",
            "position_hint": "northeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "exterior metal entrance door",
            "category": "opening",
            "position_hint": "southwest exterior wall opening into the entry threshold, drawn with door swing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west or northwest exterior wall of the shared living-dining area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the southeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "curtained daughter bedroom window",
            "category": "opening",
            "position_hint": "outer wall of the daughter bedroom, opposite or near the bed, with simple curtain line symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "mother bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the northeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "fixed into the kitchenette counter along the north or west wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "small stovetop counter",
            "category": "prop",
            "position_hint": "beside the sink in the kitchenette service area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "dining table with chairs",
            "category": "furniture",
            "position_hint": "middle of the shared living-dining area, close to kitchenette and TV sightline",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "TV and low stand",
            "category": "furniture",
            "position_hint": "against the shared-room wall opposite the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "mother bed",
            "category": "furniture",
            "position_hint": "inside the mother bedroom, headboard against an exterior or partition wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "inside the daughter bedroom, placed below or near the wall where later cues appear",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 23,
            "label": "corpse behind bedroom curtain",
            "category": "prop",
            "position_hint": "daughter bedroom near the curtained window, behind or beside number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "blood pool and bloody footprints",
            "category": "prop",
            "position_hint": "daughter bedroom floor, leading toward the curtained window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "old photo gripped in hand",
            "category": "prop",
            "position_hint": "with the corpse cue near the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "two teacups, one overturned",
            "category": "prop",
            "position_hint": "on dining table number 15 during the discovery sequence",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "small wrist mark on resident",
            "category": "prop",
            "position_hint": "character overlay cue during ordinary shared-room day action, not tied to the floor structure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "red circle above daughter bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "shifted backpack and doll after reset",
            "category": "prop",
            "position_hint": "daughter bedroom floor or storage spot, slightly different from the discovery-state position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "bathroom mirror red circle hallucination",
            "category": "prop",
            "position_hint": "bathroom mirror reflection and reflected wall near number 19",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "family photo face distortion hallucination",
            "category": "prop",
            "position_hint": "on or near dining table number 15 in the shared living-dining area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "ransacked interior with muddy footprints",
            "category": "prop",
            "position_hint": "across entry, shared room, dining table, living window, and daughter bedroom doorway",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "blood-stained photo pinned in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18, centered inside the wall-circle clue",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          3,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 3, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B08": {
        "bg_id": "L05B08",
        "fp_id": "fp_l05_main_interior",
        "use_numbered_elements": [
          5,
          9,
          10,
          18,
          23,
          24,
          25,
          26
        ],
        "ignore_numbered_elements": [
          22,
          27,
          28,
          29,
          30,
          31,
          32
        ],
        "base_markers_to_reference": [
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the southeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "curtained daughter bedroom window",
            "category": "opening",
            "position_hint": "outer wall of the daughter bedroom, opposite or near the bed, with simple curtain line symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "inside the daughter bedroom, placed below or near the wall where later cues appear",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 23,
            "label": "corpse behind bedroom curtain",
            "category": "prop",
            "position_hint": "daughter bedroom near the curtained window, behind or beside number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "blood pool and bloody footprints",
            "category": "prop",
            "position_hint": "daughter bedroom floor, leading toward the curtained window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "old photo gripped in hand",
            "category": "prop",
            "position_hint": "with the corpse cue near the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "red circle above daughter bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "small wrist mark on resident",
            "category": "prop",
            "position_hint": "character overlay cue during ordinary shared-room day action, not tied to the floor structure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "shifted backpack and doll after reset",
            "category": "prop",
            "position_hint": "daughter bedroom floor or storage spot, slightly different from the discovery-state position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "bathroom mirror red circle hallucination",
            "category": "prop",
            "position_hint": "bathroom mirror reflection and reflected wall near number 19",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "family photo face distortion hallucination",
            "category": "prop",
            "position_hint": "on or near dining table number 15 in the shared living-dining area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "ransacked interior with muddy footprints",
            "category": "prop",
            "position_hint": "across entry, shared room, dining table, living window, and daughter bedroom doorway",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "blood-stained photo pinned in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18, centered inside the wall-circle clue",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "two teacups, one overturned",
            "category": "prop",
            "position_hint": "on dining table number 15 during the discovery sequence",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          5
        ],
        "dominant_target_unit_marker_number": 5,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L05B07": {
        "bg_id": "L05B07",
        "fp_id": "fp_l05_main_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          27
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          28,
          29,
          30,
          31,
          32
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold",
            "category": "area",
            "position_hint": "southwest edge of the compact rooftop room, just inside the exterior metal door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared living-dining area",
            "category": "area",
            "position_hint": "central and west side of the unit, connecting entry, kitchen, bedrooms, and bathroom",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette service area",
            "category": "area",
            "position_hint": "northwest side of the shared area, along the outer wall near the living window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "mother bedroom",
            "category": "area",
            "position_hint": "northeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bathroom",
            "category": "area",
            "position_hint": "east side between the shared area and private rooms",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "exterior metal entrance door",
            "category": "opening",
            "position_hint": "southwest exterior wall opening into the entry threshold, drawn with door swing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west or northwest exterior wall of the shared living-dining area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the southeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "curtained daughter bedroom window",
            "category": "opening",
            "position_hint": "outer wall of the daughter bedroom, opposite or near the bed, with simple curtain line symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "mother bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the northeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the east-side bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "fixed into the kitchenette counter along the north or west wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "small stovetop counter",
            "category": "prop",
            "position_hint": "beside the sink in the kitchenette service area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "dining table with chairs",
            "category": "furniture",
            "position_hint": "middle of the shared living-dining area, close to kitchenette and TV sightline",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "TV and low stand",
            "category": "furniture",
            "position_hint": "against the shared-room wall opposite the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "mother bed",
            "category": "furniture",
            "position_hint": "inside the mother bedroom, headboard against an exterior or partition wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "inside the daughter bedroom, placed below or near the wall where later cues appear",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 27,
            "label": "shifted backpack and doll after reset",
            "category": "prop",
            "position_hint": "daughter bedroom floor or storage spot, slightly different from the discovery-state position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "small wrist mark on resident",
            "category": "prop",
            "position_hint": "character overlay cue during ordinary shared-room day action, not tied to the floor structure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "corpse behind bedroom curtain",
            "category": "prop",
            "position_hint": "daughter bedroom near the curtained window, behind or beside number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "blood pool and bloody footprints",
            "category": "prop",
            "position_hint": "daughter bedroom floor, leading toward the curtained window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "old photo gripped in hand",
            "category": "prop",
            "position_hint": "with the corpse cue near the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "red circle above daughter bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "bathroom mirror red circle hallucination",
            "category": "prop",
            "position_hint": "bathroom mirror reflection and reflected wall near number 19",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "family photo face distortion hallucination",
            "category": "prop",
            "position_hint": "on or near dining table number 15 in the shared living-dining area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "ransacked interior with muddy footprints",
            "category": "prop",
            "position_hint": "across entry, shared room, dining table, living window, and daughter bedroom doorway",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "blood-stained photo pinned in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18, centered inside the wall-circle clue",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "two teacups, one overturned",
            "category": "prop",
            "position_hint": "on dining table number 15 during the discovery sequence",
            "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)"
        ]
      },
      "L05B05": {
        "bg_id": "L05B05",
        "fp_id": "fp_l05_main_interior",
        "use_numbered_elements": [
          2,
          4,
          5,
          8,
          9,
          10,
          11,
          15,
          17,
          18
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "shared living-dining area",
            "category": "area",
            "position_hint": "central and west side of the unit, connecting entry, kitchen, bedrooms, and bathroom",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "mother bedroom",
            "category": "area",
            "position_hint": "northeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west or northwest exterior wall of the shared living-dining area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the southeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "curtained daughter bedroom window",
            "category": "opening",
            "position_hint": "outer wall of the daughter bedroom, opposite or near the bed, with simple curtain line symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "mother bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the northeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "dining table with chairs",
            "category": "furniture",
            "position_hint": "middle of the shared living-dining area, close to kitchenette and TV sightline",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "mother bed",
            "category": "furniture",
            "position_hint": "inside the mother bedroom, headboard against an exterior or partition wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "inside the daughter bedroom, placed below or near the wall where later cues appear",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "small wrist mark on resident",
            "category": "prop",
            "position_hint": "character overlay cue during ordinary shared-room day action, not tied to the floor structure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "corpse behind bedroom curtain",
            "category": "prop",
            "position_hint": "daughter bedroom near the curtained window, behind or beside number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "blood pool and bloody footprints",
            "category": "prop",
            "position_hint": "daughter bedroom floor, leading toward the curtained window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "old photo gripped in hand",
            "category": "prop",
            "position_hint": "with the corpse cue near the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "red circle above daughter bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "shifted backpack and doll after reset",
            "category": "prop",
            "position_hint": "daughter bedroom floor or storage spot, slightly different from the discovery-state position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "bathroom mirror red circle hallucination",
            "category": "prop",
            "position_hint": "bathroom mirror reflection and reflected wall near number 19",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "family photo face distortion hallucination",
            "category": "prop",
            "position_hint": "on or near dining table number 15 in the shared living-dining area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "ransacked interior with muddy footprints",
            "category": "prop",
            "position_hint": "across entry, shared room, dining table, living window, and daughter bedroom doorway",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "blood-stained photo pinned in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18, centered inside the wall-circle clue",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "two teacups, one overturned",
            "category": "prop",
            "position_hint": "on dining table number 15 during the discovery sequence",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B04": {
        "bg_id": "L05B04",
        "fp_id": "fp_l05_main_interior",
        "use_numbered_elements": [
          2,
          3,
          6,
          8,
          12,
          13,
          15,
          19,
          20,
          21,
          28,
          29
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          27,
          30,
          31,
          32
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "shared living-dining area",
            "category": "area",
            "position_hint": "central and west side of the unit, connecting entry, kitchen, bedrooms, and bathroom",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette service area",
            "category": "area",
            "position_hint": "northwest side of the shared area, along the outer wall near the living window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bathroom",
            "category": "area",
            "position_hint": "east side between the shared area and private rooms",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west or northwest exterior wall of the shared living-dining area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the east-side bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "fixed into the kitchenette counter along the north or west wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "dining table with chairs",
            "category": "furniture",
            "position_hint": "middle of the shared living-dining area, close to kitchenette and TV sightline",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "bathroom mirror",
            "category": "prop",
            "position_hint": "fixed on the bathroom wall above the wash area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "bathroom sink",
            "category": "prop",
            "position_hint": "below or beside the bathroom mirror in the small wet-room bathroom",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "toilet and shower wet-room fixture",
            "category": "prop",
            "position_hint": "rear or side of the compact bathroom, drawn as standard plan symbols",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 28,
            "label": "bathroom mirror red circle hallucination",
            "category": "prop",
            "position_hint": "bathroom mirror reflection and reflected wall near number 19",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "family photo face distortion hallucination",
            "category": "prop",
            "position_hint": "on or near dining table number 15 in the shared living-dining area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "small wrist mark on resident",
            "category": "prop",
            "position_hint": "character overlay cue during ordinary shared-room day action, not tied to the floor structure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "corpse behind bedroom curtain",
            "category": "prop",
            "position_hint": "daughter bedroom near the curtained window, behind or beside number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "blood pool and bloody footprints",
            "category": "prop",
            "position_hint": "daughter bedroom floor, leading toward the curtained window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "old photo gripped in hand",
            "category": "prop",
            "position_hint": "with the corpse cue near the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "red circle above daughter bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "shifted backpack and doll after reset",
            "category": "prop",
            "position_hint": "daughter bedroom floor or storage spot, slightly different from the discovery-state position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "ransacked interior with muddy footprints",
            "category": "prop",
            "position_hint": "across entry, shared room, dining table, living window, and daughter bedroom doorway",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "blood-stained photo pinned in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18, centered inside the wall-circle clue",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "two teacups, one overturned",
            "category": "prop",
            "position_hint": "on dining table number 15 during the discovery sequence",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          3,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 3, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B03": {
        "bg_id": "L05B03",
        "fp_id": "fp_l05_main_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          20,
          21,
          30
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          27,
          28,
          29,
          31,
          32
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold",
            "category": "area",
            "position_hint": "southwest edge of the compact rooftop room, just inside the exterior metal door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared living-dining area",
            "category": "area",
            "position_hint": "central and west side of the unit, connecting entry, kitchen, bedrooms, and bathroom",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette service area",
            "category": "area",
            "position_hint": "northwest side of the shared area, along the outer wall near the living window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "mother bedroom",
            "category": "area",
            "position_hint": "northeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bathroom",
            "category": "area",
            "position_hint": "east side between the shared area and private rooms",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "exterior metal entrance door",
            "category": "opening",
            "position_hint": "southwest exterior wall opening into the entry threshold, drawn with door swing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west or northwest exterior wall of the shared living-dining area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the southeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "curtained daughter bedroom window",
            "category": "opening",
            "position_hint": "outer wall of the daughter bedroom, opposite or near the bed, with simple curtain line symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "mother bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the northeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the east-side bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "fixed into the kitchenette counter along the north or west wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "small stovetop counter",
            "category": "prop",
            "position_hint": "beside the sink in the kitchenette service area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "dining table with chairs",
            "category": "furniture",
            "position_hint": "middle of the shared living-dining area, close to kitchenette and TV sightline",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "TV and low stand",
            "category": "furniture",
            "position_hint": "against the shared-room wall opposite the dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "mother bed",
            "category": "furniture",
            "position_hint": "inside the mother bedroom, headboard against an exterior or partition wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "inside the daughter bedroom, placed below or near the wall where later cues appear",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "bathroom mirror",
            "category": "prop",
            "position_hint": "fixed on the bathroom wall above the wash area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "bathroom sink",
            "category": "prop",
            "position_hint": "below or beside the bathroom mirror in the small wet-room bathroom",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "toilet and shower wet-room fixture",
            "category": "prop",
            "position_hint": "rear or side of the compact bathroom, drawn as standard plan symbols",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 30,
            "label": "ransacked interior with muddy footprints",
            "category": "prop",
            "position_hint": "across entry, shared room, dining table, living window, and daughter bedroom doorway",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "small wrist mark on resident",
            "category": "prop",
            "position_hint": "character overlay cue during ordinary shared-room day action, not tied to the floor structure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "corpse behind bedroom curtain",
            "category": "prop",
            "position_hint": "daughter bedroom near the curtained window, behind or beside number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "blood pool and bloody footprints",
            "category": "prop",
            "position_hint": "daughter bedroom floor, leading toward the curtained window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "old photo gripped in hand",
            "category": "prop",
            "position_hint": "with the corpse cue near the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "red circle above daughter bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "shifted backpack and doll after reset",
            "category": "prop",
            "position_hint": "daughter bedroom floor or storage spot, slightly different from the discovery-state position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "bathroom mirror red circle hallucination",
            "category": "prop",
            "position_hint": "bathroom mirror reflection and reflected wall near number 19",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "family photo face distortion hallucination",
            "category": "prop",
            "position_hint": "on or near dining table number 15 in the shared living-dining area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "blood-stained photo pinned in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18, centered inside the wall-circle clue",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "two teacups, one overturned",
            "category": "prop",
            "position_hint": "on dining table number 15 during the discovery sequence",
            "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)"
        ]
      },
      "L05B02": {
        "bg_id": "L05B02",
        "fp_id": "fp_l05_main_interior",
        "use_numbered_elements": [
          2,
          5,
          9,
          10,
          18,
          30,
          31
        ],
        "ignore_numbered_elements": [
          22,
          23,
          24,
          25,
          26,
          27,
          28,
          29,
          32
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "shared living-dining area",
            "category": "area",
            "position_hint": "central and west side of the unit, connecting entry, kitchen, bedrooms, and bathroom",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "southeast private room off the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "interior door from shared area into the southeast bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "curtained daughter bedroom window",
            "category": "opening",
            "position_hint": "outer wall of the daughter bedroom, opposite or near the bed, with simple curtain line symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "inside the daughter bedroom, placed below or near the wall where later cues appear",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 30,
            "label": "ransacked interior with muddy footprints",
            "category": "prop",
            "position_hint": "across entry, shared room, dining table, living window, and daughter bedroom doorway",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "blood-stained photo pinned in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18, centered inside the wall-circle clue",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "small wrist mark on resident",
            "category": "prop",
            "position_hint": "character overlay cue during ordinary shared-room day action, not tied to the floor structure",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "corpse behind bedroom curtain",
            "category": "prop",
            "position_hint": "daughter bedroom near the curtained window, behind or beside number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "blood pool and bloody footprints",
            "category": "prop",
            "position_hint": "daughter bedroom floor, leading toward the curtained window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "old photo gripped in hand",
            "category": "prop",
            "position_hint": "with the corpse cue near the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "red circle above daughter bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall above or near number 18",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "shifted backpack and doll after reset",
            "category": "prop",
            "position_hint": "daughter bedroom floor or storage spot, slightly different from the discovery-state position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "bathroom mirror red circle hallucination",
            "category": "prop",
            "position_hint": "bathroom mirror reflection and reflected wall near number 19",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "family photo face distortion hallucination",
            "category": "prop",
            "position_hint": "on or near dining table number 15 in the shared living-dining area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "two teacups, one overturned",
            "category": "prop",
            "position_hint": "on dining table number 15 during the discovery sequence",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L11B01": {
        "bg_id": "L11B01",
        "fp_id": "fp_l11_main_yard_stairs",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          20,
          21
        ],
        "ignore_numbered_elements": [
          22
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "alley approach area",
            "category": "area",
            "position_hint": "south edge of the plan, outside the villa boundary",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "small shared yard",
            "category": "area",
            "position_hint": "inside the gate at the southwest and center of the lot",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "main villa building footprint",
            "category": "area",
            "position_hint": "east and north portion of the lot, enclosing the yard on two sides",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "pedestrian gate",
            "category": "opening",
            "position_hint": "south boundary wall between alley and yard",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "narrow side service passage",
            "category": "area",
            "position_hint": "west side of the building leading from yard to stair base",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "lower exterior metal stair flight",
            "category": "prop",
            "position_hint": "rear side of the yard, attached along the outer building wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "intermediate stair landing",
            "category": "prop",
            "position_hint": "midpoint of the exterior stair assembly at the rear wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "upper exterior metal stair flight",
            "category": "prop",
            "position_hint": "above the side passage, continuing from intermediate landing to rooftop level",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "rooftop stair landing",
            "category": "area",
            "position_hint": "top of the exterior stair, just before the rooftop deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "rooftop utility deck",
            "category": "area",
            "position_hint": "roof surface around the rooftop dwelling, north and west of the rooftop unit",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "compact rooftop unit footprint",
            "category": "area",
            "position_hint": "northeast portion of the rooftop deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "rooftop unit iron entrance door",
            "category": "opening",
            "position_hint": "southwest face of the rooftop unit, opening toward the rooftop landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "small rooftop unit window",
            "category": "opening",
            "position_hint": "wall of the rooftop unit facing the rooftop deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "open rooftop deck area near the north or northwest parapet",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "rooftop clothesline",
            "category": "prop",
            "position_hint": "stretched across the rooftop utility deck near the water tank",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "low drying platform bench",
            "category": "furniture",
            "position_hint": "on the rooftop utility deck near the clothesline",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "stair support posts and pipe railings",
            "category": "prop",
            "position_hint": "along both exterior stair flights and landings",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 19,
            "label": "half-open rooftop door state",
            "category": "opening",
            "position_hint": "at number 13, rooftop unit entrance door",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "hastily parked bicycle",
            "category": "prop",
            "position_hint": "rear corner of number 2, near the stair approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "unpleasant odor cue",
            "category": "prop",
            "position_hint": "around number 10 and number 13 at rooftop landing and entrance",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 22,
            "label": "police vehicle and siren presence",
            "category": "prop",
            "position_hint": "outside number 4, at the alley-yard transition",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          6,
          10,
          11,
          12
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 6, 10, 11, 12]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L11B02": {
        "bg_id": "L11B02",
        "fp_id": "fp_l11_main_yard_stairs",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          17,
          18,
          20,
          22
        ],
        "ignore_numbered_elements": [
          19,
          21
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "alley approach area",
            "category": "area",
            "position_hint": "south edge of the plan, outside the villa boundary",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "small shared yard",
            "category": "area",
            "position_hint": "inside the gate at the southwest and center of the lot",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "main villa building footprint",
            "category": "area",
            "position_hint": "east and north portion of the lot, enclosing the yard on two sides",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "pedestrian gate",
            "category": "opening",
            "position_hint": "south boundary wall between alley and yard",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "ground-floor building entrance",
            "category": "opening",
            "position_hint": "east side of the yard on the main villa wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "narrow side service passage",
            "category": "area",
            "position_hint": "west side of the building leading from yard to stair base",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "lower exterior metal stair flight",
            "category": "prop",
            "position_hint": "rear side of the yard, attached along the outer building wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "intermediate stair landing",
            "category": "prop",
            "position_hint": "midpoint of the exterior stair assembly at the rear wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "upper exterior metal stair flight",
            "category": "prop",
            "position_hint": "above the side passage, continuing from intermediate landing to rooftop level",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "low drying platform bench",
            "category": "furniture",
            "position_hint": "on the rooftop utility deck near the clothesline",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "stair support posts and pipe railings",
            "category": "prop",
            "position_hint": "along both exterior stair flights and landings",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 20,
            "label": "hastily parked bicycle",
            "category": "prop",
            "position_hint": "rear corner of number 2, near the stair approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "police vehicle and siren presence",
            "category": "prop",
            "position_hint": "outside number 4, at the alley-yard transition",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 19,
            "label": "half-open rooftop door state",
            "category": "opening",
            "position_hint": "at number 13, rooftop unit entrance door",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "unpleasant odor cue",
            "category": "prop",
            "position_hint": "around number 10 and number 13 at rooftop landing and entrance",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L10B02": {
        "bg_id": "L10B02",
        "fp_id": "fp_l10_store_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main shared sales floor",
            "category": "area",
            "position_hint": "center of the rectangular store footprint, occupying the main customer shopping area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "front threshold zone",
            "category": "area",
            "position_hint": "south side immediately inside the street-facing entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "checkout and queue zone",
            "category": "area",
            "position_hint": "front southwest quadrant, between the aisle ends and the exit lane",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "rear stocking service zone",
            "category": "area",
            "position_hint": "north band of the store behind the main aisles",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "automatic sliding glass entrance",
            "category": "opening",
            "position_hint": "south wall, slightly east of center, opening from the street into the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "street-facing glass window band",
            "category": "opening",
            "position_hint": "south wall frontage, spanning west of the entrance as double-line window symbols",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "rear employee service door",
            "category": "opening",
            "position_hint": "north wall of the sales floor, connecting the shared sales floor to the rear stocking zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "parallel grocery gondola aisles",
            "category": "prop",
            "position_hint": "central sales floor, three or four long north-south shelf rows with clear aisles between them",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "front promotional display tables",
            "category": "furniture",
            "position_hint": "south-central sales floor, just beyond the threshold zone before the main aisle rows",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "checkout counter row",
            "category": "prop",
            "position_hint": "front southwest side, aligned parallel to the street frontage near the exit lane",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "employee approach lane",
            "category": "area",
            "position_hint": "east side circulation strip running from the rear stocking zone toward the front aisles",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "customer exit lane",
            "category": "area",
            "position_hint": "southwest route past the checkout counters toward the entrance and exit threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "wall-mounted CCTV camera",
            "category": "prop",
            "position_hint": "inside south wall above or near the main entrance, angled toward the checkout and front aisles",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "temporary stocking cartons and handcart",
            "category": "prop",
            "position_hint": "mid-aisle near the front half of the central gondolas, where staff are replenishing shelves",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "temporary stocking staff activity",
            "category": "prop",
            "position_hint": "around the central aisle ends and the employee approach lane during the busy dusk moment",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "dusk neon spill from street frontage",
            "category": "prop",
            "position_hint": "south threshold and window-front area, entering from outside commercial signage",
            "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,
          11,
          12
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 11, 12]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L15B01": {
        "bg_id": "L15B01",
        "fp_id": "fp_l15_admin_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "admin office room",
            "category": "area",
            "position_hint": "main rectangular room footprint, central shared/admin zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance door",
            "category": "opening",
            "position_hint": "southwest wall, swinging inward from back-of-house corridor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "CCTV review desk",
            "category": "furniture",
            "position_hint": "north wall, centered, long desk facing south into the room",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "CCTV monitor bank",
            "category": "prop",
            "position_hint": "on or just above number 3, against the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "security staff chair",
            "category": "furniture",
            "position_hint": "immediately south of number 3, facing north toward number 4",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "observer standing area",
            "category": "area",
            "position_hint": "south-central part of the room, behind number 5 with clear view to number 4",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "side visitor chair",
            "category": "furniture",
            "position_hint": "west side of number 5, angled toward the monitor desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "file and equipment cabinet",
            "category": "prop",
            "position_hint": "east wall, narrow storage run beside the desk area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 9,
            "label": "unusually dark CCTV screen segment",
            "category": "prop",
            "position_hint": "overlay only on number 4 during the CCTV review moment; not 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,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L13B03": {
        "bg_id": "L13B03",
        "fp_id": "fp_police_office_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [
          16,
          17,
          18
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "workstation zone",
            "category": "area",
            "position_hint": "north and central portion of the single office room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared review zone",
            "category": "area",
            "position_hint": "center of the room around the evidence review desk",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "southwest corner immediately inside the entry door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "service and storage zone",
            "category": "area",
            "position_hint": "southeast and east wall strip of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "entry and exit door",
            "category": "opening",
            "position_hint": "southwest wall, opening inward from the corridor into the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "north window row",
            "category": "opening",
            "position_hint": "north exterior wall above the workstation zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "northeast side of the workstation zone, angled toward the room center",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "duty computer monitor",
            "category": "prop",
            "position_hint": "on the duty detective desk, facing toward the seated position",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "investigator desk",
            "category": "furniture",
            "position_hint": "west-center side of the workstation zone, facing inward",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "investigator computer monitor",
            "category": "prop",
            "position_hint": "on the investigator desk, near the back edge of the desktop",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "evidence review desk",
            "category": "furniture",
            "position_hint": "center of the shared review zone between the two workstations",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "filing cabinets",
            "category": "furniture",
            "position_hint": "east wall of the service and storage zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "coffee station",
            "category": "prop",
            "position_hint": "southeast corner of the service and storage zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "visitor waiting chairs",
            "category": "furniture",
            "position_hint": "southwest side near the entry threshold zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "night monitor glow cue",
            "category": "prop",
            "position_hint": "around the duty computer monitor on the northeast duty desk",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 16,
            "label": "scattered case photos",
            "category": "prop",
            "position_hint": "spread across the investigator desk surface",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "GPS trace result on monitor",
            "category": "prop",
            "position_hint": "displayed on the duty computer monitor",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "loose note paper and pen",
            "category": "prop",
            "position_hint": "near the investigator desk or shared review desk edge",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L13B01": {
        "bg_id": "L13B01",
        "fp_id": "fp_police_office_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          16,
          17,
          18
        ],
        "ignore_numbered_elements": [
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "workstation zone",
            "category": "area",
            "position_hint": "north and central portion of the single office room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared review zone",
            "category": "area",
            "position_hint": "center of the room around the evidence review desk",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "southwest corner immediately inside the entry door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "service and storage zone",
            "category": "area",
            "position_hint": "southeast and east wall strip of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "entry and exit door",
            "category": "opening",
            "position_hint": "southwest wall, opening inward from the corridor into the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "north window row",
            "category": "opening",
            "position_hint": "north exterior wall above the workstation zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "northeast side of the workstation zone, angled toward the room center",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "duty computer monitor",
            "category": "prop",
            "position_hint": "on the duty detective desk, facing toward the seated position",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "investigator desk",
            "category": "furniture",
            "position_hint": "west-center side of the workstation zone, facing inward",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "investigator computer monitor",
            "category": "prop",
            "position_hint": "on the investigator desk, near the back edge of the desktop",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "evidence review desk",
            "category": "furniture",
            "position_hint": "center of the shared review zone between the two workstations",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "filing cabinets",
            "category": "furniture",
            "position_hint": "east wall of the service and storage zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "coffee station",
            "category": "prop",
            "position_hint": "southeast corner of the service and storage zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "visitor waiting chairs",
            "category": "furniture",
            "position_hint": "southwest side near the entry threshold zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 16,
            "label": "scattered case photos",
            "category": "prop",
            "position_hint": "spread across the investigator desk surface",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "GPS trace result on monitor",
            "category": "prop",
            "position_hint": "displayed on the duty computer monitor",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "loose note paper and pen",
            "category": "prop",
            "position_hint": "near the investigator desk or shared review desk edge",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "night monitor glow cue",
            "category": "prop",
            "position_hint": "around the duty computer monitor on the northeast duty desk",
            "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)"
        ]
      },
      "L13B02": {
        "bg_id": "L13B02",
        "fp_id": "fp_police_office_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [
          15,
          16,
          17,
          18
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "workstation zone",
            "category": "area",
            "position_hint": "north and central portion of the single office room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared review zone",
            "category": "area",
            "position_hint": "center of the room around the evidence review desk",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "southwest corner immediately inside the entry door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "service and storage zone",
            "category": "area",
            "position_hint": "southeast and east wall strip of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "entry and exit door",
            "category": "opening",
            "position_hint": "southwest wall, opening inward from the corridor into the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "north window row",
            "category": "opening",
            "position_hint": "north exterior wall above the workstation zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "northeast side of the workstation zone, angled toward the room center",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "duty computer monitor",
            "category": "prop",
            "position_hint": "on the duty detective desk, facing toward the seated position",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "investigator desk",
            "category": "furniture",
            "position_hint": "west-center side of the workstation zone, facing inward",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "investigator computer monitor",
            "category": "prop",
            "position_hint": "on the investigator desk, near the back edge of the desktop",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "evidence review desk",
            "category": "furniture",
            "position_hint": "center of the shared review zone between the two workstations",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "filing cabinets",
            "category": "furniture",
            "position_hint": "east wall of the service and storage zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "coffee station",
            "category": "prop",
            "position_hint": "southeast corner of the service and storage zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "visitor waiting chairs",
            "category": "furniture",
            "position_hint": "southwest side near the entry threshold zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "night monitor glow cue",
            "category": "prop",
            "position_hint": "around the duty computer monitor on the northeast duty desk",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "scattered case photos",
            "category": "prop",
            "position_hint": "spread across the investigator desk surface",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "GPS trace result on monitor",
            "category": "prop",
            "position_hint": "displayed on the duty computer monitor",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "loose note paper and pen",
            "category": "prop",
            "position_hint": "near the investigator desk or shared review desk edge",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L18B02": {
        "bg_id": "L18B02",
        "fp_id": "fp_l18_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "hull footprint and outer perimeter",
            "category": "area",
            "position_hint": "overall rounded boat outline enclosing the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "open working deck shared zone",
            "category": "area",
            "position_hint": "central and aft portion of the boat, behind the wheelhouse threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse doorway threshold zone",
            "category": "area",
            "position_hint": "forward edge of the open deck, directly before the wheelhouse doorway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "wheelhouse interior sliver service zone",
            "category": "area",
            "position_hint": "narrow forward strip beyond the doorway, only enough to show the helm side",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "port low bulwark and rail",
            "category": "prop",
            "position_hint": "left side of the open deck along the hull edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "starboard low bulwark and rail",
            "category": "prop",
            "position_hint": "right side of the open deck along the hull edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "stern transom rail",
            "category": "prop",
            "position_hint": "aft end of the open deck across the rounded stern",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "wheelhouse doorway opening",
            "category": "opening",
            "position_hint": "forward center of the deck, connecting the threshold to the wheelhouse sliver",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "wheelhouse front window",
            "category": "opening",
            "position_hint": "forward wall of the wheelhouse sliver, drawn as a double-line window symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "helm console and wheel",
            "category": "prop",
            "position_hint": "inside the wheelhouse sliver, slightly starboard of the doorway",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "rectangular deck hatch or fish hold cover",
            "category": "prop",
            "position_hint": "center of the open working deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "fixed side bench or storage locker",
            "category": "furniture",
            "position_hint": "port-aft side of the open deck against the low bulwark",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "folded nautical map",
            "category": "prop",
            "position_hint": "on or near the seated spot on the open working deck, used only for the quiet deck moment",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "old printed photograph",
            "category": "prop",
            "position_hint": "beside or above the map on the open working deck, used only for the quiet deck moment",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "threshold struggle position",
            "category": "area",
            "position_hint": "at the wheelhouse doorway threshold where the blocking/grabbing action occurs, used only for the struggle moment",
            "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)"
        ]
      },
      "L18B01": {
        "bg_id": "L18B01",
        "fp_id": "fp_l18_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          15
        ],
        "ignore_numbered_elements": [
          13,
          14
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "hull footprint and outer perimeter",
            "category": "area",
            "position_hint": "overall rounded boat outline enclosing the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "open working deck shared zone",
            "category": "area",
            "position_hint": "central and aft portion of the boat, behind the wheelhouse threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse doorway threshold zone",
            "category": "area",
            "position_hint": "forward edge of the open deck, directly before the wheelhouse doorway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "wheelhouse interior sliver service zone",
            "category": "area",
            "position_hint": "narrow forward strip beyond the doorway, only enough to show the helm side",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "port low bulwark and rail",
            "category": "prop",
            "position_hint": "left side of the open deck along the hull edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "starboard low bulwark and rail",
            "category": "prop",
            "position_hint": "right side of the open deck along the hull edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "stern transom rail",
            "category": "prop",
            "position_hint": "aft end of the open deck across the rounded stern",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "wheelhouse doorway opening",
            "category": "opening",
            "position_hint": "forward center of the deck, connecting the threshold to the wheelhouse sliver",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "wheelhouse front window",
            "category": "opening",
            "position_hint": "forward wall of the wheelhouse sliver, drawn as a double-line window symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "helm console and wheel",
            "category": "prop",
            "position_hint": "inside the wheelhouse sliver, slightly starboard of the doorway",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "rectangular deck hatch or fish hold cover",
            "category": "prop",
            "position_hint": "center of the open working deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "fixed side bench or storage locker",
            "category": "furniture",
            "position_hint": "port-aft side of the open deck against the low bulwark",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "threshold struggle position",
            "category": "area",
            "position_hint": "at the wheelhouse doorway threshold where the blocking/grabbing action occurs, used only for the struggle moment",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "folded nautical map",
            "category": "prop",
            "position_hint": "on or near the seated spot on the open working deck, used only for the quiet deck moment",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "old printed photograph",
            "category": "prop",
            "position_hint": "beside or above the map on the open working deck, used only for the quiet deck moment",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L19B01": {
        "bg_id": "L19B01",
        "fp_id": "fp_l19_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main wheelhouse cabin",
            "category": "area",
            "position_hint": "central enclosed rectangular cabin footprint, bow side at north and aft side at south",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "aft threshold standing zone",
            "category": "area",
            "position_hint": "south end of cabin just inside aft deck door, kept mostly clear for entry and confrontation blocking",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "helm console with wheel and throttle",
            "category": "prop",
            "position_hint": "forward starboard half of cabin, directly below the forward windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "forward windshield band",
            "category": "opening",
            "position_hint": "north wall across the bow-facing front of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "port side window",
            "category": "opening",
            "position_hint": "west wall, forward-to-middle section of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "starboard side window",
            "category": "opening",
            "position_hint": "east wall, forward-to-middle section of wheelhouse near helm",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "aft deck door",
            "category": "opening",
            "position_hint": "south wall, slightly port of center, opening from exterior deck into wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small captain seat or stool",
            "category": "furniture",
            "position_hint": "just aft of helm console, close to starboard side with narrow clearance around it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low storage bench or locker",
            "category": "furniture",
            "position_hint": "aft port wall, opposite the helm side and near the entry standing zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "many red circular wall marks",
            "category": "prop",
            "position_hint": "visible interior wall surfaces behind and around the foreground face line, especially side and aft wall areas; overlay only, not part of base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "old photo clue",
            "category": "prop",
            "position_hint": "loose hand-held or temporarily placed photo near the helm confrontation area; overlay only, not part of base 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
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "56e6dda8-e0b1-4689-a2aa-9b81b984988e",
  "resolved_model": "gpt",
  "updated_at": "2026-07-09T20:54:16.959260+00:00",
  "project_config_snapshot": {}
}