{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "87859d7fae867cc1",
  "data": {
    "overlays": {
      "L03B02": {
        "bg_id": "L03B02",
        "fp_id": "fp_l03_rooftop_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop deck area",
            "category": "area",
            "position_hint": "main open exterior roof area occupying the center and west side of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room exterior footprint",
            "category": "area",
            "position_hint": "east side rectangular built volume bordering the deck, only the exterior approach shown",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "west-facing wall of the rooftop room footprint, opening onto the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "small exterior window",
            "category": "opening",
            "position_hint": "same west wall of the rooftop room footprint, north of the iron entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "iron-door threshold zone",
            "category": "area",
            "position_hint": "small pale beige landing directly in front of the iron entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "northwest corner of the rooftop deck, close to the parapet",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "clothesline posts and lines",
            "category": "prop",
            "position_hint": "spanning the northern half of the open deck between two simple posts",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "low parapet boundary",
            "category": "area",
            "position_hint": "continuous low wall around the perimeter of the rooftop deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "left-center portion of the rooftop deck, between the water tank and the door approach path",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "advertisement leaflet at door gap",
            "category": "prop",
            "position_hint": "wedged at the iron entrance door seam in the threshold zone; overlay only, not drawn on base plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "slightly open breached door state",
            "category": "opening",
            "position_hint": "at the iron entrance door, indicating the unlocked and slightly ajar moment; overlay only, not drawn on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "long intruder shadow cue",
            "category": "prop",
            "position_hint": "stretching across the threshold zone toward the small exterior window; overlay only, not drawn on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "wind-scattered dried herb leaves",
            "category": "prop",
            "position_hint": "around the low drying platform and drifting across the approach path toward the iron door; overlay only, not drawn on base plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          5,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 5, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B07": {
        "bg_id": "L04B07",
        "fp_id": "fp_l04_rooftop_room_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          7,
          8,
          9,
          11,
          14,
          15,
          16,
          17,
          18,
          25,
          26
        ],
        "ignore_numbered_elements": [
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "southwest interior threshold immediately inside the exterior door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "living dining shared zone",
            "category": "area",
            "position_hint": "central and west side of the unit, connected to entry and room doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette service strip",
            "category": "area",
            "position_hint": "east side of living dining area along the wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "second bedroom private zone",
            "category": "area",
            "position_hint": "northeast room off the shared zone, with curtain-covered window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "rooftop exterior landing",
            "category": "area",
            "position_hint": "just outside the south exterior entrance, shown as a small utility landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "south wall between rooftop landing and entry threshold, with inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west wall of living dining area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "second bedroom door",
            "category": "opening",
            "position_hint": "between living dining area and second bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "kitchen sink and faucet",
            "category": "furniture",
            "position_hint": "east wall of kitchenette service strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "compact stove counter",
            "category": "furniture",
            "position_hint": "adjacent to sink on kitchenette wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "TV on low cabinet",
            "category": "furniture",
            "position_hint": "living dining area against west or north interior wall, facing dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "dining table",
            "category": "furniture",
            "position_hint": "center of living dining shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "dining chair set",
            "category": "furniture",
            "position_hint": "around dining table in living dining shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 25,
            "label": "washed herbs and simmering pot",
            "category": "prop",
            "position_hint": "at kitchen sink and stove area, relevant to quiet daytime domestic state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "small circular wrist mark detail",
            "category": "prop",
            "position_hint": "near dining or sink activity, on an occupant wrist in the domestic daytime state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 27,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table during night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "blood stains and footprint trail",
            "category": "prop",
            "position_hint": "across second bedroom floor leading toward the curtain-covered window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "seated body behind curtain",
            "category": "prop",
            "position_hint": "behind curtain at second bedroom window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "crumpled clue photo in hand",
            "category": "prop",
            "position_hint": "with the body behind the second bedroom curtain in the discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle on bedroom wall",
            "category": "prop",
            "position_hint": "on second bedroom wall above or near the bed during discovery state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "impossibly clean reset state",
            "category": "prop",
            "position_hint": "second bedroom and dining table restored with no discovery traces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "second bedroom floor or storage area, subtly displaced in clean reset state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "fleeting bathroom red reflection",
            "category": "prop",
            "position_hint": "bathroom mirror or wall surface, appearing only as hallucination state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "distorted family photo image",
            "category": "prop",
            "position_hint": "on or near dining table as a momentary hallucination of a framed photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "ransacked clutter and toppled chairs",
            "category": "prop",
            "position_hint": "living dining area and circulation path during searched-apartment state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window left open",
            "category": "opening",
            "position_hint": "small living window on west wall in ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "bloodied clue photo pinned in red circle",
            "category": "prop",
            "position_hint": "second bedroom wall at center of red circle during ransacked state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "wind-clattering entrance door state",
            "category": "opening",
            "position_hint": "iron entrance door and threshold during dark hollow dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          5,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 5, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B08": {
        "bg_id": "L04B08",
        "fp_id": "fp_l04_rooftop_room_main",
        "use_numbered_elements": [
          2,
          4,
          5,
          10,
          11,
          13,
          16,
          17,
          18,
          20,
          21,
          27,
          28,
          29,
          30,
          31
        ],
        "ignore_numbered_elements": [
          25,
          26,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "living dining shared zone",
            "category": "area",
            "position_hint": "central and west side of the unit, connected to entry and room doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "main bedroom private zone",
            "category": "area",
            "position_hint": "northwest room off the shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "second bedroom private zone",
            "category": "area",
            "position_hint": "northeast room off the shared zone, with curtain-covered window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "main bedroom door",
            "category": "opening",
            "position_hint": "between living dining area and main bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "second bedroom door",
            "category": "opening",
            "position_hint": "between living dining area and second bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "curtain-covered second bedroom window",
            "category": "opening",
            "position_hint": "north or east exterior wall of second bedroom, indicated as a window with curtain line",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "TV on low cabinet",
            "category": "furniture",
            "position_hint": "living dining area against west or north interior wall, facing dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "dining table",
            "category": "furniture",
            "position_hint": "center of living dining shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "dining chair set",
            "category": "furniture",
            "position_hint": "around dining table in living dining shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "second bedroom bed",
            "category": "furniture",
            "position_hint": "against inner wall of second bedroom below the wall area seen from the doorway",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "bedroom wardrobe storage",
            "category": "furniture",
            "position_hint": "second bedroom side wall near the door, as a simple closet rectangle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 27,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table during night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "blood stains and footprint trail",
            "category": "prop",
            "position_hint": "across second bedroom floor leading toward the curtain-covered window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "seated body behind curtain",
            "category": "prop",
            "position_hint": "behind curtain at second bedroom window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "crumpled clue photo in hand",
            "category": "prop",
            "position_hint": "with the body behind the second bedroom curtain in the discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle on bedroom wall",
            "category": "prop",
            "position_hint": "on second bedroom wall above or near the bed during discovery state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "washed herbs and simmering pot",
            "category": "prop",
            "position_hint": "at kitchen sink and stove area, relevant to quiet daytime domestic state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "small circular wrist mark detail",
            "category": "prop",
            "position_hint": "near dining or sink activity, on an occupant wrist in the domestic daytime state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "impossibly clean reset state",
            "category": "prop",
            "position_hint": "second bedroom and dining table restored with no discovery traces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "second bedroom floor or storage area, subtly displaced in clean reset state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "fleeting bathroom red reflection",
            "category": "prop",
            "position_hint": "bathroom mirror or wall surface, appearing only as hallucination state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "distorted family photo image",
            "category": "prop",
            "position_hint": "on or near dining table as a momentary hallucination of a framed photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "ransacked clutter and toppled chairs",
            "category": "prop",
            "position_hint": "living dining area and circulation path during searched-apartment state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window left open",
            "category": "opening",
            "position_hint": "small living window on west wall in ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "bloodied clue photo pinned in red circle",
            "category": "prop",
            "position_hint": "second bedroom wall at center of red circle during ransacked state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "wind-clattering entrance door state",
            "category": "opening",
            "position_hint": "iron entrance door and threshold during dark hollow dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B09": {
        "bg_id": "L04B09",
        "fp_id": "fp_l04_rooftop_room_main",
        "use_numbered_elements": [
          2,
          5,
          11,
          13,
          17,
          18,
          20,
          21,
          32,
          33
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "living dining shared zone",
            "category": "area",
            "position_hint": "central and west side of the unit, connected to entry and room doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "second bedroom private zone",
            "category": "area",
            "position_hint": "northeast room off the shared zone, with curtain-covered window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "second bedroom door",
            "category": "opening",
            "position_hint": "between living dining area and second bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "curtain-covered second bedroom window",
            "category": "opening",
            "position_hint": "north or east exterior wall of second bedroom, indicated as a window with curtain line",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "dining table",
            "category": "furniture",
            "position_hint": "center of living dining shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "dining chair set",
            "category": "furniture",
            "position_hint": "around dining table in living dining shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "second bedroom bed",
            "category": "furniture",
            "position_hint": "against inner wall of second bedroom below the wall area seen from the doorway",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "bedroom wardrobe storage",
            "category": "furniture",
            "position_hint": "second bedroom side wall near the door, as a simple closet rectangle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 32,
            "label": "impossibly clean reset state",
            "category": "prop",
            "position_hint": "second bedroom and dining table restored with no discovery traces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "second bedroom floor or storage area, subtly displaced in clean reset state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "washed herbs and simmering pot",
            "category": "prop",
            "position_hint": "at kitchen sink and stove area, relevant to quiet daytime domestic state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "small circular wrist mark detail",
            "category": "prop",
            "position_hint": "near dining or sink activity, on an occupant wrist in the domestic daytime state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table during night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "blood stains and footprint trail",
            "category": "prop",
            "position_hint": "across second bedroom floor leading toward the curtain-covered window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "seated body behind curtain",
            "category": "prop",
            "position_hint": "behind curtain at second bedroom window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "crumpled clue photo in hand",
            "category": "prop",
            "position_hint": "with the body behind the second bedroom curtain in the discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle on bedroom wall",
            "category": "prop",
            "position_hint": "on second bedroom wall above or near the bed during discovery state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "fleeting bathroom red reflection",
            "category": "prop",
            "position_hint": "bathroom mirror or wall surface, appearing only as hallucination state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "distorted family photo image",
            "category": "prop",
            "position_hint": "on or near dining table as a momentary hallucination of a framed photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "ransacked clutter and toppled chairs",
            "category": "prop",
            "position_hint": "living dining area and circulation path during searched-apartment state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window left open",
            "category": "opening",
            "position_hint": "small living window on west wall in ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "bloodied clue photo pinned in red circle",
            "category": "prop",
            "position_hint": "second bedroom wall at center of red circle during ransacked state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "wind-clattering entrance door state",
            "category": "opening",
            "position_hint": "iron entrance door and threshold during dark hollow dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B06": {
        "bg_id": "L04B06",
        "fp_id": "fp_l04_rooftop_room_main",
        "use_numbered_elements": [
          2,
          4,
          5,
          6,
          10,
          11,
          12,
          13,
          17,
          19,
          20,
          21,
          22,
          23,
          24,
          32,
          34,
          35
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          33,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "living dining shared zone",
            "category": "area",
            "position_hint": "central and west side of the unit, connected to entry and room doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "main bedroom private zone",
            "category": "area",
            "position_hint": "northwest room off the shared zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "second bedroom private zone",
            "category": "area",
            "position_hint": "northeast room off the shared zone, with curtain-covered window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bathroom service zone",
            "category": "area",
            "position_hint": "southeast corner beside the entry and kitchenette",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "main bedroom door",
            "category": "opening",
            "position_hint": "between living dining area and main bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "second bedroom door",
            "category": "opening",
            "position_hint": "between living dining area and second bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "between entry/kitchen edge and bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "curtain-covered second bedroom window",
            "category": "opening",
            "position_hint": "north or east exterior wall of second bedroom, indicated as a window with curtain line",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "dining table",
            "category": "furniture",
            "position_hint": "center of living dining shared 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": "against west wall of main bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "second bedroom bed",
            "category": "furniture",
            "position_hint": "against inner wall of second bedroom below the wall area seen from the doorway",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "bedroom wardrobe storage",
            "category": "furniture",
            "position_hint": "second bedroom side wall near the door, as a simple closet rectangle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "bathroom sink",
            "category": "furniture",
            "position_hint": "inside bathroom near door side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "toilet",
            "category": "furniture",
            "position_hint": "inside bathroom on outer wall side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "shower drain area",
            "category": "furniture",
            "position_hint": "rear corner of bathroom service zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 32,
            "label": "impossibly clean reset state",
            "category": "prop",
            "position_hint": "second bedroom and dining table restored with no discovery traces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "fleeting bathroom red reflection",
            "category": "prop",
            "position_hint": "bathroom mirror or wall surface, appearing only as hallucination state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "distorted family photo image",
            "category": "prop",
            "position_hint": "on or near dining table as a momentary hallucination of a framed photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "washed herbs and simmering pot",
            "category": "prop",
            "position_hint": "at kitchen sink and stove area, relevant to quiet daytime domestic state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "small circular wrist mark detail",
            "category": "prop",
            "position_hint": "near dining or sink activity, on an occupant wrist in the domestic daytime state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table during night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "blood stains and footprint trail",
            "category": "prop",
            "position_hint": "across second bedroom floor leading toward the curtain-covered window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "seated body behind curtain",
            "category": "prop",
            "position_hint": "behind curtain at second bedroom window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "crumpled clue photo in hand",
            "category": "prop",
            "position_hint": "with the body behind the second bedroom curtain in the discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle on bedroom wall",
            "category": "prop",
            "position_hint": "on second bedroom wall above or near the bed during discovery state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "second bedroom floor or storage area, subtly displaced in clean reset state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "ransacked clutter and toppled chairs",
            "category": "prop",
            "position_hint": "living dining area and circulation path during searched-apartment state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window left open",
            "category": "opening",
            "position_hint": "small living window on west wall in ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "bloodied clue photo pinned in red circle",
            "category": "prop",
            "position_hint": "second bedroom wall at center of red circle during ransacked state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "wind-clattering entrance door state",
            "category": "opening",
            "position_hint": "iron entrance door and threshold during dark hollow dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          4,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 4, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B05": {
        "bg_id": "L04B05",
        "fp_id": "fp_l04_rooftop_room_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          7,
          8,
          9,
          11,
          13,
          17,
          18,
          20,
          21,
          36,
          37,
          38
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "southwest interior threshold immediately inside the exterior door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "living dining shared zone",
            "category": "area",
            "position_hint": "central and west side of the unit, connected to entry and room doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette service strip",
            "category": "area",
            "position_hint": "east side of living dining area along the wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "second bedroom private zone",
            "category": "area",
            "position_hint": "northeast room off the shared zone, with curtain-covered window",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "rooftop exterior landing",
            "category": "area",
            "position_hint": "just outside the south exterior entrance, shown as a small utility landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "south wall between rooftop landing and entry threshold, with inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west wall of living dining area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "second bedroom door",
            "category": "opening",
            "position_hint": "between living dining area and second bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "curtain-covered second bedroom window",
            "category": "opening",
            "position_hint": "north or east exterior wall of second bedroom, indicated as a window with curtain line",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "dining table",
            "category": "furniture",
            "position_hint": "center of living dining shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "dining chair set",
            "category": "furniture",
            "position_hint": "around dining table in living dining shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "second bedroom bed",
            "category": "furniture",
            "position_hint": "against inner wall of second bedroom below the wall area seen from the doorway",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "bedroom wardrobe storage",
            "category": "furniture",
            "position_hint": "second bedroom side wall near the door, as a simple closet rectangle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 36,
            "label": "ransacked clutter and toppled chairs",
            "category": "prop",
            "position_hint": "living dining area and circulation path during searched-apartment state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window left open",
            "category": "opening",
            "position_hint": "small living window on west wall in ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "bloodied clue photo pinned in red circle",
            "category": "prop",
            "position_hint": "second bedroom wall at center of red circle during ransacked state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "washed herbs and simmering pot",
            "category": "prop",
            "position_hint": "at kitchen sink and stove area, relevant to quiet daytime domestic state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "small circular wrist mark detail",
            "category": "prop",
            "position_hint": "near dining or sink activity, on an occupant wrist in the domestic daytime state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table during night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "blood stains and footprint trail",
            "category": "prop",
            "position_hint": "across second bedroom floor leading toward the curtain-covered window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "seated body behind curtain",
            "category": "prop",
            "position_hint": "behind curtain at second bedroom window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "crumpled clue photo in hand",
            "category": "prop",
            "position_hint": "with the body behind the second bedroom curtain in the discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle on bedroom wall",
            "category": "prop",
            "position_hint": "on second bedroom wall above or near the bed during discovery state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "impossibly clean reset state",
            "category": "prop",
            "position_hint": "second bedroom and dining table restored with no discovery traces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "second bedroom floor or storage area, subtly displaced in clean reset state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "fleeting bathroom red reflection",
            "category": "prop",
            "position_hint": "bathroom mirror or wall surface, appearing only as hallucination state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "distorted family photo image",
            "category": "prop",
            "position_hint": "on or near dining table as a momentary hallucination of a framed photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "wind-clattering entrance door state",
            "category": "opening",
            "position_hint": "iron entrance door and threshold during dark hollow dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          5,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 5, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B04": {
        "bg_id": "L04B04",
        "fp_id": "fp_l04_rooftop_room_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          7,
          8,
          9,
          16,
          17,
          18,
          39
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "southwest interior threshold immediately inside the exterior door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "living dining shared zone",
            "category": "area",
            "position_hint": "central and west side of the unit, connected to entry and room doors",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kitchenette service strip",
            "category": "area",
            "position_hint": "east side of living dining area along the wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "rooftop exterior landing",
            "category": "area",
            "position_hint": "just outside the south exterior entrance, shown as a small utility landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "south wall between rooftop landing and entry threshold, with inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west wall of living dining area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "TV on low cabinet",
            "category": "furniture",
            "position_hint": "living dining area against west or north interior wall, facing dining table",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "dining table",
            "category": "furniture",
            "position_hint": "center of living dining shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "dining chair set",
            "category": "furniture",
            "position_hint": "around dining table in living dining shared zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 39,
            "label": "wind-clattering entrance door state",
            "category": "opening",
            "position_hint": "iron entrance door and threshold during dark hollow dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "washed herbs and simmering pot",
            "category": "prop",
            "position_hint": "at kitchen sink and stove area, relevant to quiet daytime domestic state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "small circular wrist mark detail",
            "category": "prop",
            "position_hint": "near dining or sink activity, on an occupant wrist in the domestic daytime state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "two teacups with one overturned",
            "category": "prop",
            "position_hint": "on dining table during night discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "blood stains and footprint trail",
            "category": "prop",
            "position_hint": "across second bedroom floor leading toward the curtain-covered window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "seated body behind curtain",
            "category": "prop",
            "position_hint": "behind curtain at second bedroom window area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "crumpled clue photo in hand",
            "category": "prop",
            "position_hint": "with the body behind the second bedroom curtain in the discovery state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "red circle on bedroom wall",
            "category": "prop",
            "position_hint": "on second bedroom wall above or near the bed during discovery state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "impossibly clean reset state",
            "category": "prop",
            "position_hint": "second bedroom and dining table restored with no discovery traces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "second bedroom floor or storage area, subtly displaced in clean reset state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "fleeting bathroom red reflection",
            "category": "prop",
            "position_hint": "bathroom mirror or wall surface, appearing only as hallucination state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "distorted family photo image",
            "category": "prop",
            "position_hint": "on or near dining table as a momentary hallucination of a framed photo",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "ransacked clutter and toppled chairs",
            "category": "prop",
            "position_hint": "living dining area and circulation path during searched-apartment state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window left open",
            "category": "opening",
            "position_hint": "small living window on west wall in ransacked dusk state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "bloodied clue photo pinned in red circle",
            "category": "prop",
            "position_hint": "second bedroom wall at center of red circle during ransacked state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L09B02": {
        "bg_id": "L09B02",
        "fp_id": "fp_l09_stairs_route",
        "use_numbered_elements": [
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 5,
            "label": "upper exterior stair flight",
            "category": "area",
            "position_hint": "west to north side of plan, rising toward the rooftop landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop stair head landing",
            "category": "area",
            "position_hint": "north central area, immediately outside the rooftop room entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "rooftop terrace area",
            "category": "area",
            "position_hint": "north and east side of plan, surrounding the rooftop dwelling footprint",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small rooftop dwelling footprint",
            "category": "area",
            "position_hint": "east side of rooftop level, private interior footprint shown as a simple block",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rooftop parapet and guardrail",
            "category": "prop",
            "position_hint": "outer perimeter of the rooftop terrace and stair edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "metal entrance door",
            "category": "opening",
            "position_hint": "west-facing wall of the rooftop dwelling, opening onto number 6",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "small exterior window",
            "category": "opening",
            "position_hint": "same rooftop dwelling exterior wall, near the entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "door threshold step",
            "category": "prop",
            "position_hint": "directly outside number 10 on the rooftop landing",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "far north or northeast rooftop utility corner",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "clothesline posts",
            "category": "prop",
            "position_hint": "open rooftop terrace area, spanning between utility-side posts",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "low rooftop drying platform",
            "category": "furniture",
            "position_hint": "rooftop terrace near the clothesline and utility area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 16,
            "label": "half-open door state",
            "category": "opening",
            "position_hint": "at number 10, changing the metal entrance door from neutral base state to half-open arrival state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "foul odor cue at landing",
            "category": "area",
            "position_hint": "around number 6, concentrated near the rooftop stair head landing and doorway",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "dark interior beyond doorway",
            "category": "area",
            "position_hint": "inside number 8 immediately beyond number 10, visible only through the arrival-state doorway",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          5,
          6,
          7,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([5, 6, 7, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L09B03": {
        "bg_id": "L09B03",
        "fp_id": "fp_l09_yard_courtyard",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "narrow alley approach",
            "category": "area",
            "position_hint": "south edge of plan, running east-west outside the villa gate",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "alley curb stopping bay",
            "category": "area",
            "position_hint": "southwest side of the alley approach, wide enough for a vehicle stop",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "metal pedestrian gate",
            "category": "opening",
            "position_hint": "south boundary wall, centered between alley and courtyard",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "paved shared courtyard",
            "category": "area",
            "position_hint": "central open yard just inside the pedestrian gate",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "ground-floor entrance door",
            "category": "opening",
            "position_hint": "northwest building facade opening from the courtyard",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "building footprint edge",
            "category": "area",
            "position_hint": "north and west sides enclosing the courtyard, shown as simple wall outline",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "exterior stair flight",
            "category": "area",
            "position_hint": "east side of courtyard, rising from the yard toward the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "stair landing at courtyard level",
            "category": "area",
            "position_hint": "southeast corner where the exterior stair begins",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rear service nook",
            "category": "area",
            "position_hint": "north end of courtyard behind the stair side, slightly tucked away",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "bicycle parking rail",
            "category": "prop",
            "position_hint": "inside rear service nook along the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "utility meter cabinet",
            "category": "prop",
            "position_hint": "west wall of courtyard near the ground-floor entrance",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "courtyard drainage grate",
            "category": "prop",
            "position_hint": "low central point of the paved shared courtyard",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "low boundary wall",
            "category": "area",
            "position_hint": "south and east perimeter separating courtyard from alley and neighboring lot",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "hastily parked bicycle",
            "category": "prop",
            "position_hint": "rear service nook near number 10, left at an uneven angle after arrival",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "arriving police vehicle",
            "category": "prop",
            "position_hint": "alley curb stopping bay near number 2 outside the gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "emergency siren light cue",
            "category": "prop",
            "position_hint": "alley and courtyard threshold around numbers 2 and 3 during police arrival",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          4,
          6,
          7,
          8,
          9,
          13
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4, 6, 7, 8, 9, 13]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L08B01": {
        "bg_id": "L08B01",
        "fp_id": "fp_l08_store_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          8,
          10,
          11,
          12,
          13,
          15,
          16,
          17,
          18
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main sales floor shared zone",
            "category": "area",
            "position_hint": "center of the large single-space mart interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "front entrance threshold zone",
            "category": "area",
            "position_hint": "south/front band just inside the storefront 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": "southeast/front-right portion of the sales floor",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "exterior sidewalk security observation strip",
            "category": "area",
            "position_hint": "outside the south and east storefront edges, beyond the glass line",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "automatic sliding glass entrance",
            "category": "opening",
            "position_hint": "center of the south/front wall opening into the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "front storefront window band",
            "category": "opening",
            "position_hint": "south/front wall, left of the sliding entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "side street-facing window",
            "category": "opening",
            "position_hint": "east wall near the front half, facing the exterior observation strip",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "checkout counter with fixed POS",
            "category": "furniture",
            "position_hint": "inside the checkout service zone near the southeast/front-right corner",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "west aisle shelving block",
            "category": "furniture",
            "position_hint": "long north-south shelving row on the west side of the central sales floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "central aisle shelving block",
            "category": "furniture",
            "position_hint": "long north-south shelving row in the middle of the sales floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "east aisle shelving block",
            "category": "furniture",
            "position_hint": "long north-south shelving row between the central aisle and checkout side",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "low promotional display island",
            "category": "furniture",
            "position_hint": "front-center of the sales floor near the entrance threshold",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "exterior security camera fixture",
            "category": "prop",
            "position_hint": "outside above the east/front storefront corner, aimed toward the sidewalk and window area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 17,
            "label": "temporary stocking cartons",
            "category": "prop",
            "position_hint": "central aisle near the shelving blocks, used only for the dusk stocking moment",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "pointing cue toward outside camera window area",
            "category": "prop",
            "position_hint": "from the employee position in the sales floor toward the side window and exterior security camera area",
            "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,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L08B05": {
        "bg_id": "L08B05",
        "fp_id": "fp_l08_store_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          8,
          10,
          11,
          12,
          13,
          15,
          16,
          18
        ],
        "ignore_numbered_elements": [
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "main sales floor shared zone",
            "category": "area",
            "position_hint": "center of the large single-space mart interior",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "front entrance threshold zone",
            "category": "area",
            "position_hint": "south/front band just inside the storefront 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": "southeast/front-right portion of the sales floor",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "exterior sidewalk security observation strip",
            "category": "area",
            "position_hint": "outside the south and east storefront edges, beyond the glass line",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "automatic sliding glass entrance",
            "category": "opening",
            "position_hint": "center of the south/front wall opening into the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "front storefront window band",
            "category": "opening",
            "position_hint": "south/front wall, left of the sliding entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "side street-facing window",
            "category": "opening",
            "position_hint": "east wall near the front half, facing the exterior observation strip",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "checkout counter with fixed POS",
            "category": "furniture",
            "position_hint": "inside the checkout service zone near the southeast/front-right corner",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "west aisle shelving block",
            "category": "furniture",
            "position_hint": "long north-south shelving row on the west side of the central sales floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "central aisle shelving block",
            "category": "furniture",
            "position_hint": "long north-south shelving row in the middle of the sales floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "east aisle shelving block",
            "category": "furniture",
            "position_hint": "long north-south shelving row between the central aisle and checkout side",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "low promotional display island",
            "category": "furniture",
            "position_hint": "front-center of the sales floor near the entrance threshold",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "exterior security camera fixture",
            "category": "prop",
            "position_hint": "outside above the east/front storefront corner, aimed toward the sidewalk and window area",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 18,
            "label": "pointing cue toward outside camera window area",
            "category": "prop",
            "position_hint": "from the employee position in the sales floor toward the side window and exterior security camera area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 17,
            "label": "temporary stocking cartons",
            "category": "prop",
            "position_hint": "central aisle near the shelving blocks, used only for the dusk stocking moment",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L13B01": {
        "bg_id": "L13B01",
        "fp_id": "fp_l13_admin_office",
        "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": "admin office room",
            "category": "area",
            "position_hint": "overall rectangular back-office room footprint",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "retail corridor entrance door",
            "category": "opening",
            "position_hint": "south wall, slightly west of center, swinging inward from retail corridor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "interior viewing window",
            "category": "opening",
            "position_hint": "east wall, upper half, facing toward store floor or corridor",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "CCTV review desk",
            "category": "furniture",
            "position_hint": "north wall, centered in private review zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "CCTV monitor array",
            "category": "prop",
            "position_hint": "on or above number 4 along north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "operator office chair",
            "category": "furniture",
            "position_hint": "immediately south of number 4, facing north toward monitor array",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "visitor staff chairs",
            "category": "furniture",
            "position_hint": "central room, south of operator chair, facing the CCTV desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small staff table",
            "category": "furniture",
            "position_hint": "west-center shared work zone, beside visitor seating",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "filing cabinets",
            "category": "furniture",
            "position_hint": "west wall, upper half of service storage zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "DVR equipment cabinet",
            "category": "prop",
            "position_hint": "northwest corner near CCTV desk and filing cabinets",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "wall notice board",
            "category": "prop",
            "position_hint": "west wall, lower half near staff table",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "office storage shelf",
            "category": "furniture",
            "position_hint": "southeast corner near interior viewing window",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "dark obscured CCTV playback",
            "category": "prop",
            "position_hint": "screen surface of number 5 during footage review only; overlay only, not on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "removable evidence media",
            "category": "prop",
            "position_hint": "on number 4 during handoff discussion only; overlay only, not on base plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1
        ],
        "dominant_target_unit_marker_number": 1,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L11B04": {
        "bg_id": "L11B04",
        "fp_id": "fp_police_office_main",
        "use_numbered_elements": [
          1,
          2,
          4,
          5,
          6,
          8,
          10,
          11,
          12,
          13,
          16,
          17
        ],
        "ignore_numbered_elements": [
          18,
          19
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "threshold zone",
            "category": "area",
            "position_hint": "south side inside the entrance, pale beige area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared desk zone",
            "category": "area",
            "position_hint": "central office floor, pale yellow area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "clear exit path",
            "category": "area",
            "position_hint": "open circulation strip from south entrance through the center of the office, pale beige continuation",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "entrance door",
            "category": "opening",
            "position_hint": "south wall, hinged door with inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "north window band",
            "category": "opening",
            "position_hint": "north wall, long double-line window symbol above the desks",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "main detective desk",
            "category": "furniture",
            "position_hint": "west-central part of shared desk zone, rectangular desk facing inward",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "east-central side of shared desk zone, near service wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "duty computer monitor",
            "category": "prop",
            "position_hint": "on top of number 10, facing the seated user side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "additional detective desks",
            "category": "furniture",
            "position_hint": "central cluster of two simple rectangular work desks behind or beside number 8",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "file cabinets",
            "category": "furniture",
            "position_hint": "northwest wall within number 7 records zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "wall bulletin board",
            "category": "prop",
            "position_hint": "west wall above the main desk side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "wall clock",
            "category": "prop",
            "position_hint": "upper wall area visible from the shared desk zone, near the north or west wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 18,
            "label": "scattered enlarged case photos",
            "category": "prop",
            "position_hint": "temporary loose papers spread across number 8 main detective desk; overlay only, not drawn on base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "monitor map with red location point",
            "category": "prop",
            "position_hint": "temporary screen content inside number 11 duty computer monitor; overlay only, not drawn on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L11B03": {
        "bg_id": "L11B03",
        "fp_id": "fp_police_office_main",
        "use_numbered_elements": [
          1,
          2,
          4,
          5,
          6,
          8,
          9,
          10,
          11,
          12,
          13,
          15,
          16,
          17,
          18
        ],
        "ignore_numbered_elements": [
          19
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "threshold zone",
            "category": "area",
            "position_hint": "south side inside the entrance, pale beige area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared desk zone",
            "category": "area",
            "position_hint": "central office floor, pale yellow area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "clear exit path",
            "category": "area",
            "position_hint": "open circulation strip from south entrance through the center of the office, pale beige continuation",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "entrance door",
            "category": "opening",
            "position_hint": "south wall, hinged door with inward swing arc",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "north window band",
            "category": "opening",
            "position_hint": "north wall, long double-line window symbol above the desks",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "main detective desk",
            "category": "furniture",
            "position_hint": "west-central part of shared desk zone, rectangular desk facing inward",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "visitor chair",
            "category": "furniture",
            "position_hint": "beside number 8, on the aisle side of the main detective desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "east-central side of shared desk zone, near service wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "duty computer monitor",
            "category": "prop",
            "position_hint": "on top of number 10, facing the seated user side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "additional detective desks",
            "category": "furniture",
            "position_hint": "central cluster of two simple rectangular work desks behind or beside number 8",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "file cabinets",
            "category": "furniture",
            "position_hint": "northwest wall within number 7 records zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "coffee station",
            "category": "prop",
            "position_hint": "southeast corner within number 3 service zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "wall bulletin board",
            "category": "prop",
            "position_hint": "west wall above the main desk side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "wall clock",
            "category": "prop",
            "position_hint": "upper wall area visible from the shared desk zone, near the north or west wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 18,
            "label": "scattered enlarged case photos",
            "category": "prop",
            "position_hint": "temporary loose papers spread across number 8 main detective desk; overlay only, not drawn on base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 19,
            "label": "monitor map with red location point",
            "category": "prop",
            "position_hint": "temporary screen content inside number 11 duty computer monitor; overlay only, not drawn on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L11B02": {
        "bg_id": "L11B02",
        "fp_id": "fp_police_office_main",
        "use_numbered_elements": [
          10,
          11,
          19
        ],
        "ignore_numbered_elements": [
          18
        ],
        "base_markers_to_reference": [
          {
            "number": 10,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "east-central side of shared desk zone, near service wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "duty computer monitor",
            "category": "prop",
            "position_hint": "on top of number 10, facing the seated user side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 19,
            "label": "monitor map with red location point",
            "category": "prop",
            "position_hint": "temporary screen content inside number 11 duty computer monitor; overlay only, not drawn on base floor plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 18,
            "label": "scattered enlarged case photos",
            "category": "prop",
            "position_hint": "temporary loose papers spread across number 8 main detective desk; overlay only, not drawn on base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "no base_structural_unit marker in use_numbered_elements; dominant_target_unit_marker_number left empty"
        ]
      },
      "L16B01": {
        "bg_id": "L16B01",
        "fp_id": "fp_deck_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": "open working deck",
            "category": "area",
            "position_hint": "central and aft main deck area, largest pale yellow zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "forward cabin block",
            "category": "area",
            "position_hint": "forward end of boat, pale blue cabin or wheelhouse footprint",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "stern seating bench",
            "category": "furniture",
            "position_hint": "aft edge of open deck, transverse bench against stern",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "port sea-facing gunwale",
            "category": "area",
            "position_hint": "left side edge of boat outline, low protective rail bordering the sea",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "starboard sea-facing gunwale",
            "category": "area",
            "position_hint": "right side edge of boat outline, low protective rail bordering the sea",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "cabin access door",
            "category": "opening",
            "position_hint": "aft face of forward cabin block, opening from deck into cabin",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "cabin front window",
            "category": "opening",
            "position_hint": "front face of forward cabin block, narrow rectangular window symbol",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "bow rail edge",
            "category": "area",
            "position_hint": "frontmost curved or tapered boat edge ahead of cabin block",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "deck hatch",
            "category": "prop",
            "position_hint": "center of open working deck, flush rectangular hatch or fish-hold cover",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "fixed deck cleats",
            "category": "prop",
            "position_hint": "near side gunwales on the open deck, small paired mooring cleat symbols",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "unfolded map",
            "category": "prop",
            "position_hint": "not drawn on base floor plan; transient item used during deck exchange in the central working deck area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "shown photograph",
            "category": "prop",
            "position_hint": "not drawn on base floor plan; transient item used during deck exchange near the map on the central 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,
          4,
          5,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4, 5, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L17B01": {
        "bg_id": "L17B01",
        "fp_id": "fp_wheelhouse_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "wheelhouse control cabin",
            "category": "area",
            "position_hint": "central enclosed cabin interior, main pale yellow zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "aft deck entry door",
            "category": "opening",
            "position_hint": "south wall of wheelhouse, centered slightly to starboard, opening from exterior deck into cabin",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "forward windshield windows",
            "category": "opening",
            "position_hint": "north wall across the bow-facing side, wide multi-panel window line above helm",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "port side window",
            "category": "opening",
            "position_hint": "west wall of wheelhouse, narrow rectangular side window",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "starboard side window",
            "category": "opening",
            "position_hint": "east wall of wheelhouse, narrow rectangular side window",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "helm console and wheel",
            "category": "furniture",
            "position_hint": "forward half of cabin, slightly starboard of center, facing north toward windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "navigation electronics and radio panel",
            "category": "prop",
            "position_hint": "mounted on or above helm console near the forward starboard corner",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "narrow fixed bench seat",
            "category": "furniture",
            "position_hint": "aft port side of cabin, against west wall near entry clearance",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "aft deck threshold",
            "category": "area",
            "position_hint": "immediately south of entry door, pale beige transition strip between exterior deck and cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "interior wall perimeter",
            "category": "area",
            "position_hint": "continuous wall boundary around the small wheelhouse cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "red circular wall markings",
            "category": "prop",
            "position_hint": "transient ominous markings covering worn interior wheelhouse walls, especially visible behind faces and along side walls",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          9,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 9, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "f0f443dc-fd79-4420-bb0a-9062c87233fc",
  "resolved_model": "gpt",
  "updated_at": "2026-06-08T22:35:58.256462+00:00",
  "project_config_snapshot": {}
}