{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "c55c2f78e54bc607",
  "data": {
    "overlays": {
      "L04B04": {
        "bg_id": "L04B04",
        "fp_id": "fp_l04_rooftop",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [
          16,
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open rooftop deck shared zone",
            "category": "area",
            "position_hint": "central and west portion of the rooftop, largest open walking area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "compact rooftop room footprint",
            "category": "area",
            "position_hint": "east side of the roof deck, rectangular enclosed room mass",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "rooftop stair access",
            "category": "opening",
            "position_hint": "south-west corner of the rooftop deck, stair opening from lower floors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "low parapet perimeter",
            "category": "area",
            "position_hint": "continuous outer roof edge around the deck, especially north and west edges",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "west wall of the rooftop room, opening onto the deck threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "small sliding window",
            "category": "opening",
            "position_hint": "north wall of the rooftop room facing the deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "cylindrical rooftop water tank",
            "category": "prop",
            "position_hint": "north-west service corner of the rooftop deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "drying line with two posts",
            "category": "prop",
            "position_hint": "north side of the open deck, spanning between parapet-side posts",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low bench platform",
            "category": "furniture",
            "position_hint": "west side of the deck below or near the drying line",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "door-front threshold apron",
            "category": "area",
            "position_hint": "small pale beige landing immediately outside the metal entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "dried herb leaves on bench and windblown loose leaves",
            "category": "prop",
            "position_hint": "on number 9 and scattered across the deck path toward number 5",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "stranger shoes stopped at the entrance",
            "category": "prop",
            "position_hint": "directly in front of number 5 on number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "long human shadow across deck",
            "category": "prop",
            "position_hint": "stretching from number 10 across number 1 toward the water tank side",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "door breach cue with leaflet in gap",
            "category": "prop",
            "position_hint": "at number 5, in the narrow door seam and latch area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "attack silhouette in window",
            "category": "prop",
            "position_hint": "inside or reflected at number 6, visible from the deck side",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 16,
            "label": "black cat silhouette near parapet",
            "category": "prop",
            "position_hint": "near number 4 beside the rooftop room side of the deck",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "lit rooftop room at dawn",
            "category": "prop",
            "position_hint": "associated with number 2 and number 6, indicating the room appears lit in the dawn background",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          4,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B03": {
        "bg_id": "L04B03",
        "fp_id": "fp_l04_stairs",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "exterior alley approach",
            "category": "area",
            "position_hint": "south edge of plan, leading toward the villa entry",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "villa entry gate",
            "category": "opening",
            "position_hint": "between exterior alley approach and ground courtyard",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "small ground courtyard",
            "category": "area",
            "position_hint": "inside the entry gate at the base of the exterior stairs",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "bicycle parking recess",
            "category": "area",
            "position_hint": "rear corner of the ground courtyard, tucked away from the main path",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "lower exterior stair flight",
            "category": "area",
            "position_hint": "rising from the ground courtyard along the side wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "middle stair landing",
            "category": "area",
            "position_hint": "turning platform halfway up the exterior stair route",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "upper exterior stair flight",
            "category": "area",
            "position_hint": "continuing from the middle landing toward the rooftop level",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "rooftop stair landing and terrace edge",
            "category": "area",
            "position_hint": "top of the exterior stairs, directly before the rooftop room entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low rooftop parapet wall",
            "category": "area",
            "position_hint": "around the exposed rooftop terrace perimeter",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "rooftop room footprint",
            "category": "area",
            "position_hint": "north side of the rooftop landing, private unit outline",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "metal rooftop room entrance door",
            "category": "opening",
            "position_hint": "on the rooftop room wall facing the stair landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "small exterior window",
            "category": "opening",
            "position_hint": "on the rooftop room exterior wall near the entrance side",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "utility corner of the rooftop terrace away from the door",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "laundry line posts and drying platform",
            "category": "prop",
            "position_hint": "open rooftop utility zone beside the water tank area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "parked bicycle after hurried arrival",
            "category": "prop",
            "position_hint": "temporarily left in the ground courtyard near the bicycle parking recess",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "half-open rooftop room door state",
            "category": "opening",
            "position_hint": "at the metal rooftop room entrance door on the rooftop landing",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "sudden foul odor cue",
            "category": "prop",
            "position_hint": "upper stair approach just before the rooftop landing",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "emergency vehicle and siren arrival cue",
            "category": "prop",
            "position_hint": "outside the villa entry at the exterior alley approach",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 4, 5, 6, 7, 8, 9, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B01": {
        "bg_id": "L04B01",
        "fp_id": "fp_l04_rooftop",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          10,
          16,
          17
        ],
        "ignore_numbered_elements": [
          11,
          12,
          13,
          14,
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open rooftop deck shared zone",
            "category": "area",
            "position_hint": "central and west portion of the rooftop, largest open walking area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "compact rooftop room footprint",
            "category": "area",
            "position_hint": "east side of the roof deck, rectangular enclosed room mass",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "rooftop stair access",
            "category": "opening",
            "position_hint": "south-west corner of the rooftop deck, stair opening from lower floors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "low parapet perimeter",
            "category": "area",
            "position_hint": "continuous outer roof edge around the deck, especially north and west edges",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "west wall of the rooftop room, opening onto the deck threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "small sliding window",
            "category": "opening",
            "position_hint": "north wall of the rooftop room facing the deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "door-front threshold apron",
            "category": "area",
            "position_hint": "small pale beige landing immediately outside the metal entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 16,
            "label": "black cat silhouette near parapet",
            "category": "prop",
            "position_hint": "near number 4 beside the rooftop room side of the deck",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "lit rooftop room at dawn",
            "category": "prop",
            "position_hint": "associated with number 2 and number 6, indicating the room appears lit in the dawn background",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "dried herb leaves on bench and windblown loose leaves",
            "category": "prop",
            "position_hint": "on number 9 and scattered across the deck path toward number 5",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "stranger shoes stopped at the entrance",
            "category": "prop",
            "position_hint": "directly in front of number 5 on number 10",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "long human shadow across deck",
            "category": "prop",
            "position_hint": "stretching from number 10 across number 1 toward the water tank side",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "door breach cue with leaflet in gap",
            "category": "prop",
            "position_hint": "at number 5, in the narrow door seam and latch area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "attack silhouette in window",
            "category": "prop",
            "position_hint": "inside or reflected at number 6, visible from the deck side",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          4,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B09": {
        "bg_id": "L05B09",
        "fp_id": "fp_l05_main",
        "use_numbered_elements": [
          2,
          3,
          4,
          8,
          9,
          10,
          11,
          12,
          14,
          15,
          16,
          17,
          18,
          26,
          28
        ],
        "ignore_numbered_elements": [
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39,
          40,
          41,
          42
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "south edge of apartment just inside the metal entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "shared living and dining zone",
            "category": "area",
            "position_hint": "central room occupying the largest open area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "kitchenette service zone",
            "category": "area",
            "position_hint": "west side of shared room along the wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "south wall between rooftop landing and entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "small living room window",
            "category": "opening",
            "position_hint": "north wall of shared living and dining zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "main bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into main bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "small bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into small bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "southwest interior wall, opening from threshold into bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "west wall counter within kitchenette",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "compact cooktop and counter",
            "category": "prop",
            "position_hint": "west wall counter beside the sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "dining table with two chairs",
            "category": "furniture",
            "position_hint": "center-left of shared living and dining zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "television on low stand",
            "category": "furniture",
            "position_hint": "north or northwest side of shared zone facing dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "living floor lamp",
            "category": "furniture",
            "position_hint": "corner of shared living zone near television stand",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "framed family photo on table",
            "category": "prop",
            "position_hint": "on dining table within shared living and dining zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 28,
            "label": "sink herbs and steaming pot",
            "category": "prop",
            "position_hint": "on kitchenette sink and cooktop area near numbers 14 and 15",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 29,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table near number 16",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "blood pool and scattered blood",
            "category": "prop",
            "position_hint": "small bedroom floor around number 20 and toward number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloody footprints to curtain",
            "category": "prop",
            "position_hint": "small bedroom floor path leading from doorway number 11 toward curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "behind curtain line at small bedroom curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "crumpled old photo in hand",
            "category": "prop",
            "position_hint": "with corpse behind curtain near number 32",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "red circle on small bedroom wall above bed",
            "category": "prop",
            "position_hint": "wall above or beside small bedroom bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "red circle vision in bathroom mirror",
            "category": "prop",
            "position_hint": "inside reflection area of bathroom mirror number 24",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "distorted face vision in framed photo",
            "category": "prop",
            "position_hint": "within framed family photo on dining table number 26",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "red wall circle with bloodied old photo pinned at center",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "ransacked disturbed furniture and household goods",
            "category": "furniture",
            "position_hint": "shared living zone around dining table number 16 and small bedroom doorway number 11",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "search footprints through living room",
            "category": "prop",
            "position_hint": "floor path from entrance number 8 through shared zone number 3",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at small living room window number 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 41,
            "label": "entrance door banging open state",
            "category": "opening",
            "position_hint": "at metal entrance door number 8",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 42,
            "label": "shifted backpack and doll position",
            "category": "prop",
            "position_hint": "small bedroom near number 27, slightly offset from the usual storage spot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B05": {
        "bg_id": "L05B05",
        "fp_id": "fp_l05_main",
        "use_numbered_elements": [
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          20,
          21,
          22,
          26,
          27,
          29,
          30,
          31,
          32,
          33,
          34
        ],
        "ignore_numbered_elements": [
          28,
          35,
          36,
          37,
          38,
          39,
          40,
          41,
          42
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "south edge of apartment just inside the metal entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "shared living and dining zone",
            "category": "area",
            "position_hint": "central room occupying the largest open area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "kitchenette service zone",
            "category": "area",
            "position_hint": "west side of shared room along the wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "bathroom wet room zone",
            "category": "area",
            "position_hint": "southwest corner beside the entrance and kitchenette",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "main bedroom private zone",
            "category": "area",
            "position_hint": "northeast enclosed room off the shared living zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "small bedroom private zone",
            "category": "area",
            "position_hint": "southeast enclosed room off the shared living zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "south wall between rooftop landing and entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "small living room window",
            "category": "opening",
            "position_hint": "north wall of shared living and dining zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "main bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into main bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "small bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into small bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "small bedroom curtained window",
            "category": "opening",
            "position_hint": "east wall of small bedroom behind the curtain line",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "west wall counter within kitchenette",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "compact cooktop and counter",
            "category": "prop",
            "position_hint": "west wall counter beside the sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "dining table with two chairs",
            "category": "furniture",
            "position_hint": "center-left of shared living and dining zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "television on low stand",
            "category": "furniture",
            "position_hint": "north or northwest side of shared zone facing dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "living floor lamp",
            "category": "furniture",
            "position_hint": "corner of shared living zone near television stand",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "main bedroom bed",
            "category": "furniture",
            "position_hint": "north wall of main bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "small bedroom bed",
            "category": "furniture",
            "position_hint": "south or west side of small bedroom, wall above bed visible",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "small bedroom wardrobe",
            "category": "furniture",
            "position_hint": "inside small bedroom near the door-side wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "main bedroom wardrobe",
            "category": "furniture",
            "position_hint": "inside main bedroom along the south wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "framed family photo on table",
            "category": "prop",
            "position_hint": "on dining table within shared living and dining zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "backpack with hanging doll storage spot",
            "category": "prop",
            "position_hint": "small bedroom near wardrobe or bed foot",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 29,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table near number 16",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "blood pool and scattered blood",
            "category": "prop",
            "position_hint": "small bedroom floor around number 20 and toward number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloody footprints to curtain",
            "category": "prop",
            "position_hint": "small bedroom floor path leading from doorway number 11 toward curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "behind curtain line at small bedroom curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "crumpled old photo in hand",
            "category": "prop",
            "position_hint": "with corpse behind curtain near number 32",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "red circle on small bedroom wall above bed",
            "category": "prop",
            "position_hint": "wall above or beside small bedroom bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 28,
            "label": "sink herbs and steaming pot",
            "category": "prop",
            "position_hint": "on kitchenette sink and cooktop area near numbers 14 and 15",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "red circle vision in bathroom mirror",
            "category": "prop",
            "position_hint": "inside reflection area of bathroom mirror number 24",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "distorted face vision in framed photo",
            "category": "prop",
            "position_hint": "within framed family photo on dining table number 26",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "red wall circle with bloodied old photo pinned at center",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "ransacked disturbed furniture and household goods",
            "category": "furniture",
            "position_hint": "shared living zone around dining table number 16 and small bedroom doorway number 11",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "search footprints through living room",
            "category": "prop",
            "position_hint": "floor path from entrance number 8 through shared zone number 3",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at small living room window number 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 41,
            "label": "entrance door banging open state",
            "category": "opening",
            "position_hint": "at metal entrance door number 8",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 42,
            "label": "shifted backpack and doll position",
            "category": "prop",
            "position_hint": "small bedroom near number 27, slightly offset from the usual storage spot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          3,
          4,
          5,
          6,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 3, 4, 5, 6, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B06": {
        "bg_id": "L05B06",
        "fp_id": "fp_l05_main",
        "use_numbered_elements": [
          2,
          3,
          6,
          7,
          8,
          10,
          11,
          16,
          19,
          20,
          21,
          22,
          27,
          42
        ],
        "ignore_numbered_elements": [
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39,
          40,
          41
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "south edge of apartment just inside the metal entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "shared living and dining zone",
            "category": "area",
            "position_hint": "central room occupying the largest open area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "main bedroom private zone",
            "category": "area",
            "position_hint": "northeast enclosed room off the shared living zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "small bedroom private zone",
            "category": "area",
            "position_hint": "southeast enclosed room off the shared living zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "south wall between rooftop landing and entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "main bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into main bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "small bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into small bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "dining table with two chairs",
            "category": "furniture",
            "position_hint": "center-left of shared living and dining zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "main bedroom bed",
            "category": "furniture",
            "position_hint": "north wall of main bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "small bedroom bed",
            "category": "furniture",
            "position_hint": "south or west side of small bedroom, wall above bed visible",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "small bedroom wardrobe",
            "category": "furniture",
            "position_hint": "inside small bedroom near the door-side wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "main bedroom wardrobe",
            "category": "furniture",
            "position_hint": "inside main bedroom along the south wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "backpack with hanging doll storage spot",
            "category": "prop",
            "position_hint": "small bedroom near wardrobe or bed foot",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 42,
            "label": "shifted backpack and doll position",
            "category": "prop",
            "position_hint": "small bedroom near number 27, slightly offset from the usual storage spot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 28,
            "label": "sink herbs and steaming pot",
            "category": "prop",
            "position_hint": "on kitchenette sink and cooktop area near numbers 14 and 15",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table near number 16",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "blood pool and scattered blood",
            "category": "prop",
            "position_hint": "small bedroom floor around number 20 and toward number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloody footprints to curtain",
            "category": "prop",
            "position_hint": "small bedroom floor path leading from doorway number 11 toward curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "behind curtain line at small bedroom curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "crumpled old photo in hand",
            "category": "prop",
            "position_hint": "with corpse behind curtain near number 32",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "red circle on small bedroom wall above bed",
            "category": "prop",
            "position_hint": "wall above or beside small bedroom bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "red circle vision in bathroom mirror",
            "category": "prop",
            "position_hint": "inside reflection area of bathroom mirror number 24",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "distorted face vision in framed photo",
            "category": "prop",
            "position_hint": "within framed family photo on dining table number 26",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "red wall circle with bloodied old photo pinned at center",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "ransacked disturbed furniture and household goods",
            "category": "furniture",
            "position_hint": "shared living zone around dining table number 16 and small bedroom doorway number 11",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "search footprints through living room",
            "category": "prop",
            "position_hint": "floor path from entrance number 8 through shared zone number 3",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at small living room window number 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 41,
            "label": "entrance door banging open state",
            "category": "opening",
            "position_hint": "at metal entrance door number 8",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          3,
          6,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 3, 6, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B10": {
        "bg_id": "L05B10",
        "fp_id": "fp_l05_main",
        "use_numbered_elements": [
          3,
          4,
          5,
          6,
          7,
          11,
          12,
          16,
          20,
          23,
          24,
          25,
          26,
          35,
          36
        ],
        "ignore_numbered_elements": [
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          37,
          38,
          39,
          40,
          41,
          42
        ],
        "base_markers_to_reference": [
          {
            "number": 3,
            "label": "shared living and dining zone",
            "category": "area",
            "position_hint": "central room occupying the largest open area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "kitchenette service zone",
            "category": "area",
            "position_hint": "west side of shared room along the wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "bathroom wet room zone",
            "category": "area",
            "position_hint": "southwest corner beside the entrance and kitchenette",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "main bedroom private zone",
            "category": "area",
            "position_hint": "northeast enclosed room off the shared living zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "small bedroom private zone",
            "category": "area",
            "position_hint": "southeast enclosed room off the shared living zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "small bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into small bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "southwest interior wall, opening from threshold into bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "dining table with two chairs",
            "category": "furniture",
            "position_hint": "center-left of shared living and dining zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "small bedroom bed",
            "category": "furniture",
            "position_hint": "south or west side of small bedroom, wall above bed visible",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "bathroom sink basin",
            "category": "prop",
            "position_hint": "inside bathroom against the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "bathroom mirror",
            "category": "prop",
            "position_hint": "above bathroom sink basin on the bathroom wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "toilet and shower drain fixture",
            "category": "prop",
            "position_hint": "rear side of compact wet bathroom",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "framed family photo on table",
            "category": "prop",
            "position_hint": "on dining table within shared living and dining zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 35,
            "label": "red circle vision in bathroom mirror",
            "category": "prop",
            "position_hint": "inside reflection area of bathroom mirror number 24",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "distorted face vision in framed photo",
            "category": "prop",
            "position_hint": "within framed family photo on dining table number 26",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 28,
            "label": "sink herbs and steaming pot",
            "category": "prop",
            "position_hint": "on kitchenette sink and cooktop area near numbers 14 and 15",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table near number 16",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "blood pool and scattered blood",
            "category": "prop",
            "position_hint": "small bedroom floor around number 20 and toward number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloody footprints to curtain",
            "category": "prop",
            "position_hint": "small bedroom floor path leading from doorway number 11 toward curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "behind curtain line at small bedroom curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "crumpled old photo in hand",
            "category": "prop",
            "position_hint": "with corpse behind curtain near number 32",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "red circle on small bedroom wall above bed",
            "category": "prop",
            "position_hint": "wall above or beside small bedroom bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "red wall circle with bloodied old photo pinned at center",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "ransacked disturbed furniture and household goods",
            "category": "furniture",
            "position_hint": "shared living zone around dining table number 16 and small bedroom doorway number 11",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "search footprints through living room",
            "category": "prop",
            "position_hint": "floor path from entrance number 8 through shared zone number 3",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at small living room window number 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 41,
            "label": "entrance door banging open state",
            "category": "opening",
            "position_hint": "at metal entrance door number 8",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 42,
            "label": "shifted backpack and doll position",
            "category": "prop",
            "position_hint": "small bedroom near number 27, slightly offset from the usual storage spot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3,
          4,
          5,
          6,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([3, 4, 5, 6, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B02": {
        "bg_id": "L05B02",
        "fp_id": "fp_l05_main",
        "use_numbered_elements": [
          3,
          7,
          11,
          13,
          20,
          21,
          27,
          37
        ],
        "ignore_numbered_elements": [
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          38,
          39,
          40,
          41,
          42
        ],
        "base_markers_to_reference": [
          {
            "number": 3,
            "label": "shared living and dining zone",
            "category": "area",
            "position_hint": "central room occupying the largest open area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "small bedroom private zone",
            "category": "area",
            "position_hint": "southeast enclosed room off the shared living zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "small bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into small bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "small bedroom curtained window",
            "category": "opening",
            "position_hint": "east wall of small bedroom behind the curtain line",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "small bedroom bed",
            "category": "furniture",
            "position_hint": "south or west side of small bedroom, wall above bed visible",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "small bedroom wardrobe",
            "category": "furniture",
            "position_hint": "inside small bedroom near the door-side wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "backpack with hanging doll storage spot",
            "category": "prop",
            "position_hint": "small bedroom near wardrobe or bed foot",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 37,
            "label": "red wall circle with bloodied old photo pinned at center",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 28,
            "label": "sink herbs and steaming pot",
            "category": "prop",
            "position_hint": "on kitchenette sink and cooktop area near numbers 14 and 15",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table near number 16",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "blood pool and scattered blood",
            "category": "prop",
            "position_hint": "small bedroom floor around number 20 and toward number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloody footprints to curtain",
            "category": "prop",
            "position_hint": "small bedroom floor path leading from doorway number 11 toward curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "behind curtain line at small bedroom curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "crumpled old photo in hand",
            "category": "prop",
            "position_hint": "with corpse behind curtain near number 32",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "red circle on small bedroom wall above bed",
            "category": "prop",
            "position_hint": "wall above or beside small bedroom bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "red circle vision in bathroom mirror",
            "category": "prop",
            "position_hint": "inside reflection area of bathroom mirror number 24",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "distorted face vision in framed photo",
            "category": "prop",
            "position_hint": "within framed family photo on dining table number 26",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "ransacked disturbed furniture and household goods",
            "category": "furniture",
            "position_hint": "shared living zone around dining table number 16 and small bedroom doorway number 11",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "search footprints through living room",
            "category": "prop",
            "position_hint": "floor path from entrance number 8 through shared zone number 3",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at small living room window number 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 41,
            "label": "entrance door banging open state",
            "category": "opening",
            "position_hint": "at metal entrance door number 8",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 42,
            "label": "shifted backpack and doll position",
            "category": "prop",
            "position_hint": "small bedroom near number 27, slightly offset from the usual storage spot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([3, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B03": {
        "bg_id": "L05B03",
        "fp_id": "fp_l05_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          7,
          8,
          9,
          11,
          13,
          14,
          15,
          16,
          17,
          18,
          20,
          21,
          26,
          27,
          38,
          39,
          40,
          41
        ],
        "ignore_numbered_elements": [
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          42
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop landing exterior utility area",
            "category": "area",
            "position_hint": "outside the south entrance, narrow exterior strip connected to roof stairs",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "south edge of apartment just inside the metal entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "shared living and dining zone",
            "category": "area",
            "position_hint": "central room occupying the largest open area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "kitchenette service zone",
            "category": "area",
            "position_hint": "west side of shared room along the wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "small bedroom private zone",
            "category": "area",
            "position_hint": "southeast enclosed room off the shared living zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "south wall between rooftop landing and entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "small living room window",
            "category": "opening",
            "position_hint": "north wall of shared living and dining zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "small bedroom door",
            "category": "opening",
            "position_hint": "east side of shared zone, opening into small bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "small bedroom curtained window",
            "category": "opening",
            "position_hint": "east wall of small bedroom behind the curtain line",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "kitchen sink and faucet",
            "category": "prop",
            "position_hint": "west wall counter within kitchenette",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "compact cooktop and counter",
            "category": "prop",
            "position_hint": "west wall counter beside the sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "dining table with two chairs",
            "category": "furniture",
            "position_hint": "center-left of shared living and dining zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "television on low stand",
            "category": "furniture",
            "position_hint": "north or northwest side of shared zone facing dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "living floor lamp",
            "category": "furniture",
            "position_hint": "corner of shared living zone near television stand",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "small bedroom bed",
            "category": "furniture",
            "position_hint": "south or west side of small bedroom, wall above bed visible",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "small bedroom wardrobe",
            "category": "furniture",
            "position_hint": "inside small bedroom near the door-side wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "framed family photo on table",
            "category": "prop",
            "position_hint": "on dining table within shared living and dining zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "backpack with hanging doll storage spot",
            "category": "prop",
            "position_hint": "small bedroom near wardrobe or bed foot",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 38,
            "label": "ransacked disturbed furniture and household goods",
            "category": "furniture",
            "position_hint": "shared living zone around dining table number 16 and small bedroom doorway number 11",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "search footprints through living room",
            "category": "prop",
            "position_hint": "floor path from entrance number 8 through shared zone number 3",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "living window open state",
            "category": "opening",
            "position_hint": "at small living room window number 9",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 41,
            "label": "entrance door banging open state",
            "category": "opening",
            "position_hint": "at metal entrance door number 8",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 28,
            "label": "sink herbs and steaming pot",
            "category": "prop",
            "position_hint": "on kitchenette sink and cooktop area near numbers 14 and 15",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table near number 16",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "blood pool and scattered blood",
            "category": "prop",
            "position_hint": "small bedroom floor around number 20 and toward number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "bloody footprints to curtain",
            "category": "prop",
            "position_hint": "small bedroom floor path leading from doorway number 11 toward curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "behind curtain line at small bedroom curtained window number 13",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "crumpled old photo in hand",
            "category": "prop",
            "position_hint": "with corpse behind curtain near number 32",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "red circle on small bedroom wall above bed",
            "category": "prop",
            "position_hint": "wall above or beside small bedroom bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "red circle vision in bathroom mirror",
            "category": "prop",
            "position_hint": "inside reflection area of bathroom mirror number 24",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "distorted face vision in framed photo",
            "category": "prop",
            "position_hint": "within framed family photo on dining table number 26",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "red wall circle with bloodied old photo pinned at center",
            "category": "prop",
            "position_hint": "small bedroom wall above or near bed number 20",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 42,
            "label": "shifted backpack and doll position",
            "category": "prop",
            "position_hint": "small bedroom near number 27, slightly offset from the usual storage spot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L09B01": {
        "bg_id": "L09B01",
        "fp_id": "fp_l09_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared sales floor zone",
            "category": "area",
            "position_hint": "large central interior area occupying most of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "south center just inside the main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "checkout service zone",
            "category": "area",
            "position_hint": "south-east interior beside the entrance threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "staff restocking display zone",
            "category": "area",
            "position_hint": "west-central side of the sales floor near display tables",
            "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, centered on the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "glass storefront window band",
            "category": "opening",
            "position_hint": "south wall flanking the main entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "checkout counters",
            "category": "furniture",
            "position_hint": "south-east checkout service zone, angled toward entrance path",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "service counter",
            "category": "furniture",
            "position_hint": "east side of checkout zone near the storefront",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "central grocery aisle shelves",
            "category": "furniture",
            "position_hint": "center of shared sales floor, long north-south shelving block",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "parallel grocery aisle shelves",
            "category": "furniture",
            "position_hint": "east-central shared sales floor, parallel to the central aisle shelves",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "promotional display island",
            "category": "furniture",
            "position_hint": "west-central staff display area near the aisle end",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "refrigerated wall cases",
            "category": "furniture",
            "position_hint": "north wall spanning most of the rear sales floor",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "produce display tables",
            "category": "furniture",
            "position_hint": "west side of shared sales floor near the staff display area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "back staff doorway",
            "category": "opening",
            "position_hint": "north-west rear wall leading out of the sales floor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "ceiling CCTV fixture",
            "category": "prop",
            "position_hint": "south interior ceiling area above the entrance and checkout sightline",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "exterior sidewalk adjacency",
            "category": "area",
            "position_hint": "outside the south wall in front of the storefront",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "bicycle parking rack",
            "category": "prop",
            "position_hint": "exterior sidewalk adjacency, south-west of the entrance",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 18,
            "label": "temporary restocking cartons",
            "category": "prop",
            "position_hint": "near the promotional display island in the staff restocking display zone",
            "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,
          16
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 16]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L14B02": {
        "bg_id": "L14B02",
        "fp_id": "fp_l14_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "staff workstation zone",
            "category": "area",
            "position_hint": "north half of the security office, in front of the CCTV monitor wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "visitor viewing zone",
            "category": "area",
            "position_hint": "south-central part of the room behind the workstation",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "threshold zone",
            "category": "area",
            "position_hint": "southwest entry corner inside the staff corridor door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "staff corridor entrance door",
            "category": "opening",
            "position_hint": "southwest wall, opening inward into the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "CCTV monitor wall",
            "category": "prop",
            "position_hint": "north wall, centered above the workstation desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "security workstation desk",
            "category": "furniture",
            "position_hint": "north half of room, directly below the monitor wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "security staff swivel chair",
            "category": "furniture",
            "position_hint": "between the workstation desk and visitor viewing zone, facing north toward the monitors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "visitor viewing chairs",
            "category": "furniture",
            "position_hint": "south-central visitor viewing zone, behind the staff chair and facing the monitors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "DVR and network equipment rack",
            "category": "prop",
            "position_hint": "east wall, northeast corner beside the monitor wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "copy and printer cabinet",
            "category": "prop",
            "position_hint": "east wall, southeast side near the visitor viewing zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "blue CCTV monitor glow during review",
            "category": "prop",
            "position_hint": "overlay cue from the monitor wall and workstation area; never drawn on the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "dark obscured playback patch on CCTV screen",
            "category": "prop",
            "position_hint": "overlay cue inside the CCTV monitor image; never drawn on the base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L13B02": {
        "bg_id": "L13B02",
        "fp_id": "fp_l13_police_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          10,
          11,
          12,
          14,
          15,
          18
        ],
        "ignore_numbered_elements": [
          19,
          20,
          21,
          22
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main shared work zone",
            "category": "area",
            "position_hint": "central open office floor area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "south side just inside the main door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "evidence and storage service zone",
            "category": "area",
            "position_hint": "east wall service strip with storage and equipment",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "main corridor door",
            "category": "opening",
            "position_hint": "south wall, slightly west of center, inward swing into threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "long exterior window line",
            "category": "opening",
            "position_hint": "north wall spanning the central work area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "interior meeting corridor doorway",
            "category": "opening",
            "position_hint": "west wall near the north corner, secondary interior exit",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "north-center of shared zone facing south, near monitor cluster",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "computer monitor cluster",
            "category": "prop",
            "position_hint": "on duty detective desk, visible from the investigator desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "rolling office chairs",
            "category": "furniture",
            "position_hint": "clustered around numbers 7, 8, and 9",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "filing cabinets and lockers",
            "category": "furniture",
            "position_hint": "east and northeast walls within the service zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "printer and copier station",
            "category": "prop",
            "position_hint": "east service zone beside the filing cabinets",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "coffee side counter",
            "category": "prop",
            "position_hint": "southeast corner of the service zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 18,
            "label": "phone-location request item",
            "category": "prop",
            "position_hint": "temporary phone or request paper held near the duty detective desk during the night request",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 19,
            "label": "murder-case photo spread",
            "category": "prop",
            "position_hint": "temporary enlarged photo spread scattered across the investigator desk in the day scene",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "missing report and call request forms",
            "category": "prop",
            "position_hint": "temporary signature paperwork on the investigator desk in the day scene",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "phone location result on monitor",
            "category": "prop",
            "position_hint": "temporary map-result screen on the duty monitor in the day scene",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "coordinate memo note and pen",
            "category": "prop",
            "position_hint": "temporary note and writing tool near the investigator desk edge in the day scene",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L13B01": {
        "bg_id": "L13B01",
        "fp_id": "fp_l13_police_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          19,
          20,
          21,
          22
        ],
        "ignore_numbered_elements": [
          18
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main shared work zone",
            "category": "area",
            "position_hint": "central open office floor area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "south side just inside the main door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "evidence and storage service zone",
            "category": "area",
            "position_hint": "east wall service strip with storage and equipment",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "main corridor door",
            "category": "opening",
            "position_hint": "south wall, slightly west of center, inward swing into threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "long exterior window line",
            "category": "opening",
            "position_hint": "north wall spanning the central work area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "interior meeting corridor doorway",
            "category": "opening",
            "position_hint": "west wall near the north corner, secondary interior exit",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "north-center of shared zone facing south, near monitor cluster",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "investigator desk",
            "category": "furniture",
            "position_hint": "south-center of shared zone facing north, used as a personal desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "spare workstation row",
            "category": "furniture",
            "position_hint": "west side of shared zone, two simple desks along the wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "computer monitor cluster",
            "category": "prop",
            "position_hint": "on duty detective desk, visible from the investigator desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "rolling office chairs",
            "category": "furniture",
            "position_hint": "clustered around numbers 7, 8, and 9",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "filing cabinets and lockers",
            "category": "furniture",
            "position_hint": "east and northeast walls within the service zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "case bulletin board",
            "category": "prop",
            "position_hint": "northwest wall above the spare workstation row",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "printer and copier station",
            "category": "prop",
            "position_hint": "east service zone beside the filing cabinets",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "coffee side counter",
            "category": "prop",
            "position_hint": "southeast corner of the service zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "visitor waiting chair",
            "category": "furniture",
            "position_hint": "near entrance threshold, facing the investigator desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 19,
            "label": "murder-case photo spread",
            "category": "prop",
            "position_hint": "temporary enlarged photo spread scattered across the investigator desk in the day scene",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "missing report and call request forms",
            "category": "prop",
            "position_hint": "temporary signature paperwork on the investigator desk in the day scene",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "phone location result on monitor",
            "category": "prop",
            "position_hint": "temporary map-result screen on the duty monitor in the day scene",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "coordinate memo note and pen",
            "category": "prop",
            "position_hint": "temporary note and writing tool near the investigator desk edge in the day scene",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 18,
            "label": "phone-location request item",
            "category": "prop",
            "position_hint": "temporary phone or request paper held near the duty detective desk during the night request",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L19B01": {
        "bg_id": "L19B01",
        "fp_id": "fp_l19_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open working deck",
            "category": "area",
            "position_hint": "aft two thirds of boat, centered between port and starboard rails",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "wheelhouse control cabin",
            "category": "area",
            "position_hint": "forward third of boat, centered near bow",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "cabin entrance threshold",
            "category": "area",
            "position_hint": "between aft deck and wheelhouse doorway",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "wheelhouse door opening",
            "category": "opening",
            "position_hint": "south wall of wheelhouse, opening onto the deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "perimeter gunwale rail",
            "category": "prop",
            "position_hint": "continuous around port side, starboard side, and stern edge of deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "stern bench locker",
            "category": "furniture",
            "position_hint": "inside stern rail, centered along south end of working deck",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "central fish-hold hatch",
            "category": "prop",
            "position_hint": "center of open working deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "port rail rod holders",
            "category": "prop",
            "position_hint": "west side rail of working deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "starboard rail rod holders",
            "category": "prop",
            "position_hint": "east side rail of working deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "helm console and wheel",
            "category": "prop",
            "position_hint": "inside wheelhouse, forward-right of cabin interior",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "cabin windows",
            "category": "opening",
            "position_hint": "port and starboard sides of wheelhouse walls",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "surrounding sea margin",
            "category": "area",
            "position_hint": "thin exterior band surrounding the boat hull outline",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "unfolded navigation map",
            "category": "prop",
            "position_hint": "on or above the open working deck near the seated exchange position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "old printed photo",
            "category": "prop",
            "position_hint": "with the map exchange on the open working deck",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          12
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 12]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L20B05": {
        "bg_id": "L20B05",
        "fp_id": "fp_l20_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [
          16,
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "cramped standing zone",
            "category": "area",
            "position_hint": "center of the enclosed wheelhouse interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "forward helm service zone",
            "category": "area",
            "position_hint": "north end of wheelhouse around the console",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "aft threshold zone",
            "category": "area",
            "position_hint": "south interior edge directly inside the aft door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "exterior deck strip",
            "category": "area",
            "position_hint": "immediately outside the aft door on the south side",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "built-in helm console",
            "category": "furniture",
            "position_hint": "against the forward north wall below the windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "steering wheel helm",
            "category": "prop",
            "position_hint": "centered on the built-in console, facing the standing zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "circular gauge cluster",
            "category": "prop",
            "position_hint": "on the forward console above and beside the steering wheel",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "GPS navigation display",
            "category": "prop",
            "position_hint": "starboard side of the forward helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "forward windshield",
            "category": "opening",
            "position_hint": "north wall spanning most of the wheelhouse front",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "port side sliding window",
            "category": "opening",
            "position_hint": "west wall, forward half of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "starboard side sliding window",
            "category": "opening",
            "position_hint": "east wall, forward half of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "aft door to deck",
            "category": "opening",
            "position_hint": "south wall centered between the wheelhouse and exterior deck strip",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "compact captain leaning seat",
            "category": "furniture",
            "position_hint": "slightly port of center behind the helm console",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "narrow chart shelf cubby",
            "category": "furniture",
            "position_hint": "port wall, rear half of the wheelhouse",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "fixed grab rail",
            "category": "prop",
            "position_hint": "along the aft interior wall beside the doorway",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 16,
            "label": "old photo held in hand",
            "category": "prop",
            "position_hint": "foreground of evidence moment, held above the helm area rather than fixed to the room",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "subjective red circle vision",
            "category": "prop",
            "position_hint": "appears visually among the circular gauges and round fittings in the ominous moment only",
            "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": 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)"
        ]
      },
      "L20B04": {
        "bg_id": "L20B04",
        "fp_id": "fp_l20_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "cramped standing zone",
            "category": "area",
            "position_hint": "center of the enclosed wheelhouse interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "forward helm service zone",
            "category": "area",
            "position_hint": "north end of wheelhouse around the console",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "aft threshold zone",
            "category": "area",
            "position_hint": "south interior edge directly inside the aft door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "exterior deck strip",
            "category": "area",
            "position_hint": "immediately outside the aft door on the south side",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "built-in helm console",
            "category": "furniture",
            "position_hint": "against the forward north wall below the windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "steering wheel helm",
            "category": "prop",
            "position_hint": "centered on the built-in console, facing the standing zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "circular gauge cluster",
            "category": "prop",
            "position_hint": "on the forward console above and beside the steering wheel",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "GPS navigation display",
            "category": "prop",
            "position_hint": "starboard side of the forward helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "forward windshield",
            "category": "opening",
            "position_hint": "north wall spanning most of the wheelhouse front",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "port side sliding window",
            "category": "opening",
            "position_hint": "west wall, forward half of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "starboard side sliding window",
            "category": "opening",
            "position_hint": "east wall, forward half of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "aft door to deck",
            "category": "opening",
            "position_hint": "south wall centered between the wheelhouse and exterior deck strip",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "compact captain leaning seat",
            "category": "furniture",
            "position_hint": "slightly port of center behind the helm console",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "narrow chart shelf cubby",
            "category": "furniture",
            "position_hint": "port wall, rear half of the wheelhouse",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "fixed grab rail",
            "category": "prop",
            "position_hint": "along the aft interior wall beside the doorway",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 16,
            "label": "old photo held in hand",
            "category": "prop",
            "position_hint": "foreground of evidence moment, held above the helm area rather than fixed to the room",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 17,
            "label": "subjective red circle vision",
            "category": "prop",
            "position_hint": "appears visually among the circular gauges and round fittings in the ominous moment only",
            "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)"
        ]
      },
      "L20B06": {
        "bg_id": "L20B06",
        "fp_id": "fp_l20_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          17
        ],
        "ignore_numbered_elements": [
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "cramped standing zone",
            "category": "area",
            "position_hint": "center of the enclosed wheelhouse interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "forward helm service zone",
            "category": "area",
            "position_hint": "north end of wheelhouse around the console",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "aft threshold zone",
            "category": "area",
            "position_hint": "south interior edge directly inside the aft door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "exterior deck strip",
            "category": "area",
            "position_hint": "immediately outside the aft door on the south side",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "built-in helm console",
            "category": "furniture",
            "position_hint": "against the forward north wall below the windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "steering wheel helm",
            "category": "prop",
            "position_hint": "centered on the built-in console, facing the standing zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "circular gauge cluster",
            "category": "prop",
            "position_hint": "on the forward console above and beside the steering wheel",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "GPS navigation display",
            "category": "prop",
            "position_hint": "starboard side of the forward helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "forward windshield",
            "category": "opening",
            "position_hint": "north wall spanning most of the wheelhouse front",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "port side sliding window",
            "category": "opening",
            "position_hint": "west wall, forward half of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "starboard side sliding window",
            "category": "opening",
            "position_hint": "east wall, forward half of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "aft door to deck",
            "category": "opening",
            "position_hint": "south wall centered between the wheelhouse and exterior deck strip",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "compact captain leaning seat",
            "category": "furniture",
            "position_hint": "slightly port of center behind the helm console",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "narrow chart shelf cubby",
            "category": "furniture",
            "position_hint": "port wall, rear half of the wheelhouse",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "fixed grab rail",
            "category": "prop",
            "position_hint": "along the aft interior wall beside the doorway",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 17,
            "label": "subjective red circle vision",
            "category": "prop",
            "position_hint": "appears visually among the circular gauges and round fittings in the ominous moment only",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 16,
            "label": "old photo held in hand",
            "category": "prop",
            "position_hint": "foreground of evidence moment, held above the helm area rather than fixed to the room",
            "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)"
        ]
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "3d6ec98b-b04c-4e61-adc8-1931145a94ed",
  "resolved_model": "gpt",
  "updated_at": "2026-05-30T04:34:20.700114+00:00",
  "project_config_snapshot": {}
}