{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "5d2891ceb277be8d",
  "data": {
    "overlays": {
      "L03B02": {
        "bg_id": "L03B02",
        "fp_id": "fp_l03_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [
          13,
          14,
          15,
          16,
          17,
          18
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop deck",
            "category": "area",
            "position_hint": "main exterior area surrounding the rooftop cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop cabin",
            "category": "area",
            "position_hint": "east half of the rooftop deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "concrete parapet",
            "category": "area",
            "position_hint": "continuous boundary around the outer roof edge",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "water tank",
            "category": "prop",
            "position_hint": "northwest corner of the rooftop deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "clothesline",
            "category": "prop",
            "position_hint": "spanning the open deck between fixed posts west of the cabin",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "cabin facade",
            "category": "area",
            "position_hint": "west-facing exterior wall of the rooftop cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "cabin window",
            "category": "opening",
            "position_hint": "cabin facade beside the iron entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "iron entrance",
            "category": "opening",
            "position_hint": "cabin facade opening onto the rooftop threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "roof access stair",
            "category": "area",
            "position_hint": "southwest roof edge with a small arrival landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "small paved zone directly outside the iron entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "tank service zone",
            "category": "area",
            "position_hint": "service pad surrounding the water tank in the northwest corner",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "drying platform",
            "category": "furniture",
            "position_hint": "low rectangular platform on the deck near the clothesline and cabin approach",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "forced ajar entrance state",
            "category": "opening",
            "position_hint": "at the iron entrance during the nighttime intrusion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "violent window silhouettes",
            "category": "prop",
            "position_hint": "confined to the cabin window during the nighttime intrusion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "loose advertising flyer",
            "category": "prop",
            "position_hint": "caught in or removed from the iron entrance gap during the intrusion",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "windblown dried leaves",
            "category": "prop",
            "position_hint": "across the drying platform and deck near the approaching intruder",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "black cat",
            "category": "prop",
            "position_hint": "on or beside the parapet during the dawn exterior view",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "illuminated window state",
            "category": "prop",
            "position_hint": "within the cabin window during the blue dawn view",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          6,
          9,
          10,
          11
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 6, 9, 10, 11]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L03B03": {
        "bg_id": "L03B03",
        "fp_id": "fp_l03_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          8,
          10,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [
          17,
          18
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop deck",
            "category": "area",
            "position_hint": "main exterior area surrounding the rooftop cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop cabin",
            "category": "area",
            "position_hint": "east half of the rooftop deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "concrete parapet",
            "category": "area",
            "position_hint": "continuous boundary around the outer roof edge",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "clothesline",
            "category": "prop",
            "position_hint": "spanning the open deck between fixed posts west of the cabin",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "cabin facade",
            "category": "area",
            "position_hint": "west-facing exterior wall of the rooftop cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "cabin window",
            "category": "opening",
            "position_hint": "cabin facade beside the iron entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "iron entrance",
            "category": "opening",
            "position_hint": "cabin facade opening onto the rooftop threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "small paved zone directly outside the iron entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "drying platform",
            "category": "furniture",
            "position_hint": "low rectangular platform on the deck near the clothesline and cabin approach",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "forced ajar entrance state",
            "category": "opening",
            "position_hint": "at the iron entrance during the nighttime intrusion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "violent window silhouettes",
            "category": "prop",
            "position_hint": "confined to the cabin window during the nighttime intrusion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "loose advertising flyer",
            "category": "prop",
            "position_hint": "caught in or removed from the iron entrance gap during the intrusion",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "windblown dried leaves",
            "category": "prop",
            "position_hint": "across the drying platform and deck near the approaching intruder",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 17,
            "label": "black cat",
            "category": "prop",
            "position_hint": "on or beside the parapet during the dawn exterior view",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "illuminated window state",
            "category": "prop",
            "position_hint": "within the cabin window during the blue dawn view",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          6,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 6, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L03B01": {
        "bg_id": "L03B01",
        "fp_id": "fp_l03_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          11,
          17,
          18
        ],
        "ignore_numbered_elements": [
          13,
          14,
          15,
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop deck",
            "category": "area",
            "position_hint": "main exterior area surrounding the rooftop cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop cabin",
            "category": "area",
            "position_hint": "east half of the rooftop deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "concrete parapet",
            "category": "area",
            "position_hint": "continuous boundary around the outer roof edge",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "water tank",
            "category": "prop",
            "position_hint": "northwest corner of the rooftop deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "clothesline",
            "category": "prop",
            "position_hint": "spanning the open deck between fixed posts west of the cabin",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "cabin facade",
            "category": "area",
            "position_hint": "west-facing exterior wall of the rooftop cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "cabin window",
            "category": "opening",
            "position_hint": "cabin facade beside the iron entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "iron entrance",
            "category": "opening",
            "position_hint": "cabin facade opening onto the rooftop threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "roof access stair",
            "category": "area",
            "position_hint": "southwest roof edge with a small arrival landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "tank service zone",
            "category": "area",
            "position_hint": "service pad surrounding the water tank in the northwest corner",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 17,
            "label": "black cat",
            "category": "prop",
            "position_hint": "on or beside the parapet during the dawn exterior view",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "illuminated window state",
            "category": "prop",
            "position_hint": "within the cabin window during the blue dawn view",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "forced ajar entrance state",
            "category": "opening",
            "position_hint": "at the iron entrance during the nighttime intrusion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "violent window silhouettes",
            "category": "prop",
            "position_hint": "confined to the cabin window during the nighttime intrusion",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "loose advertising flyer",
            "category": "prop",
            "position_hint": "caught in or removed from the iron entrance gap during the intrusion",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "windblown dried leaves",
            "category": "prop",
            "position_hint": "across the drying platform and deck near the approaching intruder",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          6,
          9,
          11
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 6, 9, 11]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B02": {
        "bg_id": "L04B02",
        "fp_id": "fp_l04_rooftop_home",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          24,
          39,
          40
        ],
        "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",
            "category": "area",
            "position_hint": "southwest edge of the dwelling, immediately inside the exterior entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "iron entry door",
            "category": "opening",
            "position_hint": "southwest exterior wall, opening inward into the threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "living-dining area",
            "category": "area",
            "position_hint": "central and western portion of the compact home",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west or northwest exterior wall of the living area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "television",
            "category": "furniture",
            "position_hint": "against the north wall of the living area, visible from the kitchenette",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "dining table",
            "category": "furniture",
            "position_hint": "center of the shared living-dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "dining chairs",
            "category": "furniture",
            "position_hint": "arranged around the dining table in the shared area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "kitchenette zone",
            "category": "area",
            "position_hint": "along the northeast edge of the shared living-dining area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "sink and faucet",
            "category": "prop",
            "position_hint": "built into the kitchenette counter along the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "stovetop",
            "category": "prop",
            "position_hint": "built into the kitchenette counter beside the sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "living floor lamp",
            "category": "furniture",
            "position_hint": "near the television or corner of the living area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 39,
            "label": "kitchen routine items",
            "category": "prop",
            "position_hint": "at the sink and stovetop, including rinsed herbs and a simmering pot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "daytime tea cup",
            "category": "prop",
            "position_hint": "on the dining table during the ordinary daytime routine",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "blood pool and bloody tracks",
            "category": "prop",
            "position_hint": "across the daughter bedroom floor, leading toward the window curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "mutilated body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "crumpled photograph",
            "category": "prop",
            "position_hint": "held by or beside the body behind the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "red circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter bed during the nighttime crime vision",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "two cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the nighttime discovery",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the spotless daughter bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "hallucinated bathroom red circle",
            "category": "prop",
            "position_hint": "on the bathroom wall visible around the mirror viewpoint",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "melting face in family photograph",
            "category": "prop",
            "position_hint": "confined to a framed family photograph on the dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "physical red circle and pinned bloody photograph",
            "category": "prop",
            "position_hint": "centered on the wall above or beside the daughter bed at dusk",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "ransacked household disorder",
            "category": "prop",
            "position_hint": "spread through the living area and daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "leading from the entry through the living area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "toppled dining chairs",
            "category": "furniture",
            "position_hint": "on the floor around the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window held open",
            "category": "opening",
            "position_hint": "at the small living-area window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "loose entry door in wind",
            "category": "opening",
            "position_hint": "at the exterior iron entrance door",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B06": {
        "bg_id": "L04B06",
        "fp_id": "fp_l04_rooftop_home",
        "use_numbered_elements": [
          14,
          15,
          16,
          17,
          18,
          25,
          26,
          27,
          28,
          29
        ],
        "ignore_numbered_elements": [
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 14,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "northwest or northern private room beyond the living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "south wall of the daughter bedroom, opening from the shared area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "against the east wall of the daughter bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "daughter bedroom window",
            "category": "opening",
            "position_hint": "north exterior wall of the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "window curtain",
            "category": "prop",
            "position_hint": "inside the daughter bedroom along the window wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 25,
            "label": "blood pool and bloody tracks",
            "category": "prop",
            "position_hint": "across the daughter bedroom floor, leading toward the window curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "mutilated body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "crumpled photograph",
            "category": "prop",
            "position_hint": "held by or beside the body behind the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "red circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter bed during the nighttime crime vision",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "two cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the nighttime discovery",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 30,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the spotless daughter bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "hallucinated bathroom red circle",
            "category": "prop",
            "position_hint": "on the bathroom wall visible around the mirror viewpoint",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "melting face in family photograph",
            "category": "prop",
            "position_hint": "confined to a framed family photograph on the dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "physical red circle and pinned bloody photograph",
            "category": "prop",
            "position_hint": "centered on the wall above or beside the daughter bed at dusk",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "ransacked household disorder",
            "category": "prop",
            "position_hint": "spread through the living area and daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "leading from the entry through the living area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "toppled dining chairs",
            "category": "furniture",
            "position_hint": "on the floor around the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window held open",
            "category": "opening",
            "position_hint": "at the small living-area window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "loose entry door in wind",
            "category": "opening",
            "position_hint": "at the exterior iron entrance door",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "kitchen routine items",
            "category": "prop",
            "position_hint": "at the sink and stovetop, including rinsed herbs and a simmering pot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "daytime tea cup",
            "category": "prop",
            "position_hint": "on the dining table during the ordinary daytime routine",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          14
        ],
        "dominant_target_unit_marker_number": 14,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L04B07": {
        "bg_id": "L04B07",
        "fp_id": "fp_l04_rooftop_home",
        "use_numbered_elements": [
          14,
          15,
          16,
          17,
          18,
          30
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 14,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "northwest or northern private room beyond the living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "south wall of the daughter bedroom, opening from the shared area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "against the east wall of the daughter bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "daughter bedroom window",
            "category": "opening",
            "position_hint": "north exterior wall of the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "window curtain",
            "category": "prop",
            "position_hint": "inside the daughter bedroom along the window wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 30,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the spotless daughter bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "blood pool and bloody tracks",
            "category": "prop",
            "position_hint": "across the daughter bedroom floor, leading toward the window curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "mutilated body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "crumpled photograph",
            "category": "prop",
            "position_hint": "held by or beside the body behind the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "red circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter bed during the nighttime crime vision",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "two cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the nighttime discovery",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "hallucinated bathroom red circle",
            "category": "prop",
            "position_hint": "on the bathroom wall visible around the mirror viewpoint",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "melting face in family photograph",
            "category": "prop",
            "position_hint": "confined to a framed family photograph on the dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "physical red circle and pinned bloody photograph",
            "category": "prop",
            "position_hint": "centered on the wall above or beside the daughter bed at dusk",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "ransacked household disorder",
            "category": "prop",
            "position_hint": "spread through the living area and daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "leading from the entry through the living area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "toppled dining chairs",
            "category": "furniture",
            "position_hint": "on the floor around the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window held open",
            "category": "opening",
            "position_hint": "at the small living-area window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "loose entry door in wind",
            "category": "opening",
            "position_hint": "at the exterior iron entrance door",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "kitchen routine items",
            "category": "prop",
            "position_hint": "at the sink and stovetop, including rinsed herbs and a simmering pot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "daytime tea cup",
            "category": "prop",
            "position_hint": "on the dining table during the ordinary daytime routine",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          14
        ],
        "dominant_target_unit_marker_number": 14,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L04B03": {
        "bg_id": "L04B03",
        "fp_id": "fp_l04_rooftop_home",
        "use_numbered_elements": [
          3,
          4,
          6,
          11,
          12,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 3,
            "label": "living-dining area",
            "category": "area",
            "position_hint": "central and western portion of the compact home",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west or northwest exterior wall of the living area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "dining table",
            "category": "furniture",
            "position_hint": "center of the shared living-dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "main bedroom",
            "category": "area",
            "position_hint": "southeast private room adjoining the shared area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "main bedroom door",
            "category": "opening",
            "position_hint": "between the shared area and the main bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "main bed",
            "category": "furniture",
            "position_hint": "against the east wall of the main bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "northwest or northern private room beyond the living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "south wall of the daughter bedroom, opening from the shared area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "blood pool and bloody tracks",
            "category": "prop",
            "position_hint": "across the daughter bedroom floor, leading toward the window curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "mutilated body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "crumpled photograph",
            "category": "prop",
            "position_hint": "held by or beside the body behind the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "red circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter bed during the nighttime crime vision",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "two cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the nighttime discovery",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the spotless daughter bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "hallucinated bathroom red circle",
            "category": "prop",
            "position_hint": "on the bathroom wall visible around the mirror viewpoint",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "melting face in family photograph",
            "category": "prop",
            "position_hint": "confined to a framed family photograph on the dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "physical red circle and pinned bloody photograph",
            "category": "prop",
            "position_hint": "centered on the wall above or beside the daughter bed at dusk",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "ransacked household disorder",
            "category": "prop",
            "position_hint": "spread through the living area and daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "leading from the entry through the living area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "toppled dining chairs",
            "category": "furniture",
            "position_hint": "on the floor around the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window held open",
            "category": "opening",
            "position_hint": "at the small living-area window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "loose entry door in wind",
            "category": "opening",
            "position_hint": "at the exterior iron entrance door",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "kitchen routine items",
            "category": "prop",
            "position_hint": "at the sink and stovetop, including rinsed herbs and a simmering pot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "daytime tea cup",
            "category": "prop",
            "position_hint": "on the dining table during the ordinary daytime routine",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3,
          11,
          14
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([3, 11, 14]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B01": {
        "bg_id": "L04B01",
        "fp_id": "fp_l04_rooftop_home",
        "use_numbered_elements": [
          3,
          6,
          19,
          20,
          21,
          22,
          23,
          31,
          32
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          30,
          33,
          34,
          35,
          36,
          37,
          38,
          39,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 3,
            "label": "living-dining area",
            "category": "area",
            "position_hint": "central and western portion of the compact home",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "dining table",
            "category": "furniture",
            "position_hint": "center of the shared living-dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "bathroom",
            "category": "area",
            "position_hint": "compact service room beside the kitchenette and main bedroom",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "opening from the shared area into the bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "bathroom washbasin",
            "category": "prop",
            "position_hint": "against the bathroom wall opposite or beside the door",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "wall mirror",
            "category": "prop",
            "position_hint": "mounted above the bathroom washbasin",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "toilet",
            "category": "prop",
            "position_hint": "rear corner of the compact bathroom",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 31,
            "label": "hallucinated bathroom red circle",
            "category": "prop",
            "position_hint": "on the bathroom wall visible around the mirror viewpoint",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "melting face in family photograph",
            "category": "prop",
            "position_hint": "confined to a framed family photograph on the dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "blood pool and bloody tracks",
            "category": "prop",
            "position_hint": "across the daughter bedroom floor, leading toward the window curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "mutilated body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "crumpled photograph",
            "category": "prop",
            "position_hint": "held by or beside the body behind the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "red circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter bed during the nighttime crime vision",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "two cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the nighttime discovery",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the spotless daughter bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "physical red circle and pinned bloody photograph",
            "category": "prop",
            "position_hint": "centered on the wall above or beside the daughter bed at dusk",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "ransacked household disorder",
            "category": "prop",
            "position_hint": "spread through the living area and daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "leading from the entry through the living area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "toppled dining chairs",
            "category": "furniture",
            "position_hint": "on the floor around the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window held open",
            "category": "opening",
            "position_hint": "at the small living-area window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "loose entry door in wind",
            "category": "opening",
            "position_hint": "at the exterior iron entrance door",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "kitchen routine items",
            "category": "prop",
            "position_hint": "at the sink and stovetop, including rinsed herbs and a simmering pot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "daytime tea cup",
            "category": "prop",
            "position_hint": "on the dining table during the ordinary daytime routine",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3,
          19
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([3, 19]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B04": {
        "bg_id": "L04B04",
        "fp_id": "fp_l04_rooftop_home",
        "use_numbered_elements": [
          14,
          15,
          16,
          17,
          18,
          33,
          34
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          35,
          36,
          37,
          38,
          39,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 14,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "northwest or northern private room beyond the living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "south wall of the daughter bedroom, opening from the shared area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "daughter bed",
            "category": "furniture",
            "position_hint": "against the east wall of the daughter bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "daughter bedroom window",
            "category": "opening",
            "position_hint": "north exterior wall of the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "window curtain",
            "category": "prop",
            "position_hint": "inside the daughter bedroom along the window wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 33,
            "label": "physical red circle and pinned bloody photograph",
            "category": "prop",
            "position_hint": "centered on the wall above or beside the daughter bed at dusk",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "ransacked household disorder",
            "category": "prop",
            "position_hint": "spread through the living area and daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "blood pool and bloody tracks",
            "category": "prop",
            "position_hint": "across the daughter bedroom floor, leading toward the window curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "mutilated body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "crumpled photograph",
            "category": "prop",
            "position_hint": "held by or beside the body behind the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "red circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter bed during the nighttime crime vision",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "two cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the nighttime discovery",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the spotless daughter bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "hallucinated bathroom red circle",
            "category": "prop",
            "position_hint": "on the bathroom wall visible around the mirror viewpoint",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "melting face in family photograph",
            "category": "prop",
            "position_hint": "confined to a framed family photograph on the dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "leading from the entry through the living area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "toppled dining chairs",
            "category": "furniture",
            "position_hint": "on the floor around the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window held open",
            "category": "opening",
            "position_hint": "at the small living-area window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "loose entry door in wind",
            "category": "opening",
            "position_hint": "at the exterior iron entrance door",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "kitchen routine items",
            "category": "prop",
            "position_hint": "at the sink and stovetop, including rinsed herbs and a simmering pot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "daytime tea cup",
            "category": "prop",
            "position_hint": "on the dining table during the ordinary daytime routine",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          14
        ],
        "dominant_target_unit_marker_number": 14,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L04B05": {
        "bg_id": "L04B05",
        "fp_id": "fp_l04_rooftop_home",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          14,
          15,
          17,
          18,
          24,
          34,
          35,
          36,
          37,
          38
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          39,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "entry threshold",
            "category": "area",
            "position_hint": "southwest edge of the dwelling, immediately inside the exterior entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "iron entry door",
            "category": "opening",
            "position_hint": "southwest exterior wall, opening inward into the threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "living-dining area",
            "category": "area",
            "position_hint": "central and western portion of the compact home",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "small living window",
            "category": "opening",
            "position_hint": "west or northwest exterior wall of the living area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "television",
            "category": "furniture",
            "position_hint": "against the north wall of the living area, visible from the kitchenette",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "dining table",
            "category": "furniture",
            "position_hint": "center of the shared living-dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "dining chairs",
            "category": "furniture",
            "position_hint": "arranged around the dining table in the shared area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "kitchenette zone",
            "category": "area",
            "position_hint": "along the northeast edge of the shared living-dining area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "sink and faucet",
            "category": "prop",
            "position_hint": "built into the kitchenette counter along the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "stovetop",
            "category": "prop",
            "position_hint": "built into the kitchenette counter beside the sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "daughter bedroom",
            "category": "area",
            "position_hint": "northwest or northern private room beyond the living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "daughter bedroom door",
            "category": "opening",
            "position_hint": "south wall of the daughter bedroom, opening from the shared area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "daughter bedroom window",
            "category": "opening",
            "position_hint": "north exterior wall of the daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "window curtain",
            "category": "prop",
            "position_hint": "inside the daughter bedroom along the window wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "living floor lamp",
            "category": "furniture",
            "position_hint": "near the television or corner of the living area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 34,
            "label": "ransacked household disorder",
            "category": "prop",
            "position_hint": "spread through the living area and daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "leading from the entry through the living area",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "toppled dining chairs",
            "category": "furniture",
            "position_hint": "on the floor around the dining table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "living window held open",
            "category": "opening",
            "position_hint": "at the small living-area window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "loose entry door in wind",
            "category": "opening",
            "position_hint": "at the exterior iron entrance door",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "blood pool and bloody tracks",
            "category": "prop",
            "position_hint": "across the daughter bedroom floor, leading toward the window curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "mutilated body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "crumpled photograph",
            "category": "prop",
            "position_hint": "held by or beside the body behind the daughter bedroom curtain",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "red circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter bed during the nighttime crime vision",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "two cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the nighttime discovery",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the spotless daughter bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "hallucinated bathroom red circle",
            "category": "prop",
            "position_hint": "on the bathroom wall visible around the mirror viewpoint",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "melting face in family photograph",
            "category": "prop",
            "position_hint": "confined to a framed family photograph on the dining table",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "physical red circle and pinned bloody photograph",
            "category": "prop",
            "position_hint": "centered on the wall above or beside the daughter bed at dusk",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "kitchen routine items",
            "category": "prop",
            "position_hint": "at the sink and stovetop, including rinsed herbs and a simmering pot",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "daytime tea cup",
            "category": "prop",
            "position_hint": "on the dining table during the ordinary daytime routine",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          8,
          14
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 8, 14]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L09B02": {
        "bg_id": "L09B02",
        "fp_id": "fp_l09_rooftop_stairs",
        "use_numbered_elements": [
          2,
          4,
          5,
          6,
          7,
          9,
          12
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "exterior stair flight",
            "category": "area",
            "position_hint": "along the east side of the villa footprint, rising from the rear yard to the roof",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "upper stair landing",
            "category": "area",
            "position_hint": "north end of the stair flight directly outside the rooftop entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "rooftop terrace",
            "category": "area",
            "position_hint": "open roof area west of the upper landing and rooftop dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop dwelling enclosure",
            "category": "area",
            "position_hint": "north side of the rooftop terrace adjoining the upper landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "south-facing wall of the rooftop dwelling, directly opposite the upper landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "perimeter parapet",
            "category": "area",
            "position_hint": "continuous outer edge around the exposed rooftop and stair arrival",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "entrance door half-open state",
            "category": "opening",
            "position_hint": "applies to the iron entrance door at number 7; excluded from the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          2,
          4,
          5,
          6,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([2, 4, 5, 6, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L09B01": {
        "bg_id": "L09B01",
        "fp_id": "fp_l09_yard_parking",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "villa building footprint",
            "category": "area",
            "position_hint": "along the north and east edges of the parcel, enclosing the yard on two sides",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "first parking bay",
            "category": "area",
            "position_hint": "southwest side of the yard, aligned with the vehicle gate",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "second parking bay",
            "category": "area",
            "position_hint": "inside the yard directly beyond the first parking bay",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "bicycle nook",
            "category": "area",
            "position_hint": "recessed rear corner of the yard behind the parking bays",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "shared yard access lane",
            "category": "area",
            "position_hint": "central strip linking the vehicle gate, parking bays, entrance, and stairs",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "vehicle and pedestrian gate",
            "category": "opening",
            "position_hint": "south boundary opening onto the narrow alley",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "ground floor entrance",
            "category": "opening",
            "position_hint": "north facade beside the foot of the exterior stairs",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "exterior stair flight",
            "category": "prop",
            "position_hint": "along the east facade, rising from the yard toward the upper floors and rooftop",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "upper stair landing",
            "category": "area",
            "position_hint": "northeast end of the stair route at the turn toward the rooftop approach",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "arriving police vehicle",
            "category": "prop",
            "position_hint": "temporarily stopped across or beside the parking bays near the vehicle gate",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "active police emergency signal",
            "category": "prop",
            "position_hint": "attached to the arriving police vehicle during the nighttime response",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B01": {
        "bg_id": "L06B01",
        "fp_id": "fp_l06_shelter_main",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          20,
          21
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "animal housing zone",
            "category": "area",
            "position_hint": "north half of the shelter interior surrounding both kennel banks",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared care work zone",
            "category": "area",
            "position_hint": "broad central and south-central work area between the entrance and kennel aisle",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "service wash zone",
            "category": "area",
            "position_hint": "southeast corner beside the grooming and bathing fixtures",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "south-center interior immediately inside the main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "west wire kennel bank",
            "category": "furniture",
            "position_hint": "northwest side, aligned lengthwise against the west wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "east wire kennel bank",
            "category": "furniture",
            "position_hint": "northeast side, facing the west kennel bank across a central aisle",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "main entrance door",
            "category": "opening",
            "position_hint": "south wall at the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "service exit door",
            "category": "opening",
            "position_hint": "east wall beside the service wash zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "north ventilation window",
            "category": "opening",
            "position_hint": "north exterior wall above the kennel zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "west ventilation window",
            "category": "opening",
            "position_hint": "upper west exterior wall beside the kennel zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "vaccination exam table",
            "category": "furniture",
            "position_hint": "southwest portion of the shared care work zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "grooming table",
            "category": "furniture",
            "position_hint": "east side of the shared care work zone near the wash zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "animal bathing tub",
            "category": "prop",
            "position_hint": "southeast service wash zone against the east wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "utility sink",
            "category": "prop",
            "position_hint": "service wash zone along the south wall beside the bathing tub",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "built-in care storage",
            "category": "furniture",
            "position_hint": "south wall of the service wash zone near the utility sink",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "washdown floor drain",
            "category": "prop",
            "position_hint": "center of the service wash zone floor",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 17,
            "label": "dogs occupying wire kennels",
            "category": "prop",
            "position_hint": "inside the west and east wire kennel banks",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "dog receiving vaccination",
            "category": "prop",
            "position_hint": "at the vaccination exam table in the southwest care area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "dog undergoing grooming",
            "category": "prop",
            "position_hint": "on or beside the grooming table near the southeast wash zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "vaccination syringe and medical tray",
            "category": "prop",
            "position_hint": "temporarily placed at the vaccination exam table",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "clippers and ointment supplies",
            "category": "prop",
            "position_hint": "temporarily placed at the grooming table and wash area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L08B01": {
        "bg_id": "L08B01",
        "fp_id": "fp_l08_store_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared sales floor",
            "category": "area",
            "position_hint": "large central and northern portion of the store",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "center of the south frontage",
            "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": "southwest side beside the entrance and exit route",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "central circulation zone",
            "category": "area",
            "position_hint": "wide east-west cross-aisle through the middle of the sales floor",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "automatic sliding entrance",
            "category": "opening",
            "position_hint": "middle of the south exterior wall within the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "storefront glazing",
            "category": "opening",
            "position_hint": "south wall on both sides of the main entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "checkout counters",
            "category": "furniture",
            "position_hint": "southwest checkout zone facing the exit path",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "west gondola shelf bank",
            "category": "furniture",
            "position_hint": "west-central sales floor, aligned north-south",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "middle gondola shelf bank",
            "category": "furniture",
            "position_hint": "center of the sales floor, aligned north-south",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "east gondola shelf bank",
            "category": "furniture",
            "position_hint": "east-central sales floor, aligned north-south",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "refrigerated display cases",
            "category": "furniture",
            "position_hint": "continuous bank along the north and northeast perimeter walls",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "entrance security camera",
            "category": "prop",
            "position_hint": "south interior wall above and beside the entrance, aimed across the threshold",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 15,
            "label": "stocking cartons and handcart",
            "category": "prop",
            "position_hint": "temporarily beside the west or middle gondola shelf bank during dusk restocking",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          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)"
        ]
      },
      "L08B04": {
        "bg_id": "L08B04",
        "fp_id": "fp_l08_store_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared sales floor",
            "category": "area",
            "position_hint": "large central and northern portion of the store",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance threshold zone",
            "category": "area",
            "position_hint": "center of the south frontage",
            "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": "southwest side beside the entrance and exit route",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "rear service zone",
            "category": "area",
            "position_hint": "northwest corner behind the sales floor",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "automatic sliding entrance",
            "category": "opening",
            "position_hint": "middle of the south exterior wall within the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "storefront glazing",
            "category": "opening",
            "position_hint": "south wall on both sides of the main entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "checkout counters",
            "category": "furniture",
            "position_hint": "southwest checkout zone facing the exit path",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "west gondola shelf bank",
            "category": "furniture",
            "position_hint": "west-central sales floor, aligned north-south",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "middle gondola shelf bank",
            "category": "furniture",
            "position_hint": "center of the sales floor, aligned north-south",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "east gondola shelf bank",
            "category": "furniture",
            "position_hint": "east-central sales floor, aligned north-south",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "staff service opening",
            "category": "opening",
            "position_hint": "northwest boundary between the sales floor and rear service zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "refrigerated display cases",
            "category": "furniture",
            "position_hint": "continuous bank along the north and northeast perimeter walls",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "entrance security camera",
            "category": "prop",
            "position_hint": "south interior wall above and beside the entrance, aimed across the threshold",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 15,
            "label": "stocking cartons and handcart",
            "category": "prop",
            "position_hint": "temporarily beside the west or middle gondola shelf bank during dusk restocking",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L12B01": {
        "bg_id": "L12B01",
        "fp_id": "fp_l12_admin_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "administrative security room",
            "category": "area",
            "position_hint": "entire compact rectangular room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "access door",
            "category": "opening",
            "position_hint": "south wall near the southwest corner, swinging inward",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "CCTV monitor bank",
            "category": "prop",
            "position_hint": "centered on the north wall above the workstation",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "workstation desk",
            "category": "furniture",
            "position_hint": "north half of the room, directly below the monitor bank",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "operator chair",
            "category": "furniture",
            "position_hint": "south side of the workstation desk, facing north toward the monitors",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "observer standing zone",
            "category": "area",
            "position_hint": "central and south-central floor area behind the operator chair",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "equipment data cabinet",
            "category": "prop",
            "position_hint": "east wall beside the workstation, outside the observer circulation path",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 8,
            "label": "dark indistinct CCTV footage",
            "category": "prop",
            "position_hint": "confined to the display surfaces of the CCTV monitor bank; omitted from the base diagram",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L11B02": {
        "bg_id": "L11B02",
        "fp_id": "fp_police_station_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [
          12,
          13,
          14
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared work zone",
            "category": "area",
            "position_hint": "main central and northern portion of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "south side immediately inside the corridor entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "service zone",
            "category": "area",
            "position_hint": "recessed southeast corner beside the entry circulation",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "corridor entrance door",
            "category": "opening",
            "position_hint": "south wall, opening inward beside the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "exterior window bank",
            "category": "opening",
            "position_hint": "north wall above the main desk area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "primary investigator desk",
            "category": "furniture",
            "position_hint": "northwest side of the shared work zone, oriented toward the central aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "northeast side of the shared work zone, near the window bank",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "shared workstation island",
            "category": "furniture",
            "position_hint": "center of the shared work zone with circulation on all sides",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "desktop monitor",
            "category": "prop",
            "position_hint": "rear edge of the duty detective desk, facing into the office",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "built-in coffee counter",
            "category": "prop",
            "position_hint": "inside the southeast service zone against the east wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "records storage cabinets",
            "category": "furniture",
            "position_hint": "west wall near the primary investigator desk without blocking circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "murder photographs",
            "category": "prop",
            "position_hint": "scattered across the primary investigator desk during the emptied daytime office state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "phone location result",
            "category": "prop",
            "position_hint": "displayed only within the duty detective desktop monitor during the daytime evidence state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "note paper and pen",
            "category": "prop",
            "position_hint": "loose note-taking materials near the duty detective workstation during the daytime state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L11B01": {
        "bg_id": "L11B01",
        "fp_id": "fp_police_station_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": "shared work zone",
            "category": "area",
            "position_hint": "main central and northern portion of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "south side immediately inside the corridor entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "service zone",
            "category": "area",
            "position_hint": "recessed southeast corner beside the entry circulation",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "corridor entrance door",
            "category": "opening",
            "position_hint": "south wall, opening inward beside the threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "exterior window bank",
            "category": "opening",
            "position_hint": "north wall above the main desk area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "primary investigator desk",
            "category": "furniture",
            "position_hint": "northwest side of the shared work zone, oriented toward the central aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "duty detective desk",
            "category": "furniture",
            "position_hint": "northeast side of the shared work zone, near the window bank",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "shared workstation island",
            "category": "furniture",
            "position_hint": "center of the shared work zone with circulation on all sides",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "desktop monitor",
            "category": "prop",
            "position_hint": "rear edge of the duty detective desk, facing into the office",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "built-in coffee counter",
            "category": "prop",
            "position_hint": "inside the southeast service zone against the east wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "records storage cabinets",
            "category": "furniture",
            "position_hint": "west wall near the primary investigator desk without blocking circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "murder photographs",
            "category": "prop",
            "position_hint": "scattered across the primary investigator desk during the emptied daytime office state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "phone location result",
            "category": "prop",
            "position_hint": "displayed only within the duty detective desktop monitor during the daytime evidence state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "note paper and pen",
            "category": "prop",
            "position_hint": "loose note-taking materials near the duty detective workstation during the daytime state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L16B01": {
        "bg_id": "L16B01",
        "fp_id": "fp_l16_deck",
        "use_numbered_elements": [
          1,
          2,
          5,
          6,
          7,
          9,
          11,
          13,
          14
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "central open deck",
            "category": "area",
            "position_hint": "central portion of vessel between bow working zone and aft wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "wheelhouse",
            "category": "area",
            "position_hint": "aft-center of vessel, enclosed cabin facing the open deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "wheelhouse deck door",
            "category": "opening",
            "position_hint": "forward wall of wheelhouse opening directly onto central deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "forward windshield",
            "category": "opening",
            "position_hint": "forward wall of wheelhouse beside the deck door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "port wheelhouse window",
            "category": "opening",
            "position_hint": "port side wall of wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "perimeter safety rails",
            "category": "prop",
            "position_hint": "along exposed port and starboard deck edges and around the bow",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "sorting work table",
            "category": "furniture",
            "position_hint": "starboard side of central open deck, leaving a clear route to wheelhouse door",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "old marked photograph",
            "category": "prop",
            "position_hint": "temporarily held between the confronting figures on the central open deck; do not draw on base plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "handheld navigation map",
            "category": "prop",
            "position_hint": "temporarily held or passed between figures on the central open deck; do not draw 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
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L17B02": {
        "bg_id": "L17B02",
        "fp_id": "fp_l17_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [
          12,
          13,
          14
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "enclosed wheelhouse shell",
            "category": "area",
            "position_hint": "compact rectangular outer enclosure surrounding the full plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "helm and control console",
            "category": "furniture",
            "position_hint": "forward wall, slightly starboard of center",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "forward windshield bank",
            "category": "opening",
            "position_hint": "across the forward wall above the helm console",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "port window bank",
            "category": "opening",
            "position_hint": "forward half of the port side wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "aft entry door",
            "category": "opening",
            "position_hint": "aft wall, offset toward the port side, with inward swing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "central standing area",
            "category": "area",
            "position_hint": "open center of the wheelhouse between the entry and helm",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "entry threshold zone",
            "category": "area",
            "position_hint": "narrow interior strip immediately forward of the aft entry door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "helm service zone",
            "category": "area",
            "position_hint": "forward interior zone surrounding the helm console and operator position",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "fixed helm seat",
            "category": "furniture",
            "position_hint": "directly aft of the helm console, leaving side passage clearance",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "old photograph evidence",
            "category": "prop",
            "position_hint": "held or presented within the central standing area during the evidence reveal",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "multiple circular perceptions",
            "category": "prop",
            "position_hint": "subjectively perceived across visible wheelhouse interior surfaces during the stunned reaction",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "distinct red circular perception",
            "category": "prop",
            "position_hint": "one localized perceived circle among the interior circular images",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "collapse position",
            "category": "prop",
            "position_hint": "central standing area beside and slightly aft of the helm position",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          7,
          8,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 7, 8, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L17B03": {
        "bg_id": "L17B03",
        "fp_id": "fp_l17_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          7,
          9,
          10,
          12,
          13
        ],
        "ignore_numbered_elements": [
          11,
          14
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "enclosed wheelhouse shell",
            "category": "area",
            "position_hint": "compact rectangular outer enclosure surrounding the full plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "helm and control console",
            "category": "furniture",
            "position_hint": "forward wall, slightly starboard of center",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "forward windshield bank",
            "category": "opening",
            "position_hint": "across the forward wall above the helm console",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "starboard window bank",
            "category": "opening",
            "position_hint": "forward half of the starboard side wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "central standing area",
            "category": "area",
            "position_hint": "open center of the wheelhouse between the entry and helm",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "helm service zone",
            "category": "area",
            "position_hint": "forward interior zone surrounding the helm console and operator position",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "fixed helm seat",
            "category": "furniture",
            "position_hint": "directly aft of the helm console, leaving side passage clearance",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "multiple circular perceptions",
            "category": "prop",
            "position_hint": "subjectively perceived across visible wheelhouse interior surfaces during the stunned reaction",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "distinct red circular perception",
            "category": "prop",
            "position_hint": "one localized perceived circle among the interior circular images",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "old photograph evidence",
            "category": "prop",
            "position_hint": "held or presented within the central standing area during the evidence reveal",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "collapse position",
            "category": "prop",
            "position_hint": "central standing area beside and slightly aft of the helm position",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          7,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 7, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L17B01": {
        "bg_id": "L17B01",
        "fp_id": "fp_l17_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          7,
          9,
          10,
          14
        ],
        "ignore_numbered_elements": [
          11,
          12,
          13
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "enclosed wheelhouse shell",
            "category": "area",
            "position_hint": "compact rectangular outer enclosure surrounding the full plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "helm and control console",
            "category": "furniture",
            "position_hint": "forward wall, slightly starboard of center",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "forward windshield bank",
            "category": "opening",
            "position_hint": "across the forward wall above the helm console",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "starboard window bank",
            "category": "opening",
            "position_hint": "forward half of the starboard side wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "central standing area",
            "category": "area",
            "position_hint": "open center of the wheelhouse between the entry and helm",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "helm service zone",
            "category": "area",
            "position_hint": "forward interior zone surrounding the helm console and operator position",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "fixed helm seat",
            "category": "furniture",
            "position_hint": "directly aft of the helm console, leaving side passage clearance",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "collapse position",
            "category": "prop",
            "position_hint": "central standing area beside and slightly aft of the helm position",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "old photograph evidence",
            "category": "prop",
            "position_hint": "held or presented within the central standing area during the evidence reveal",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "multiple circular perceptions",
            "category": "prop",
            "position_hint": "subjectively perceived across visible wheelhouse interior surfaces during the stunned reaction",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "distinct red circular perception",
            "category": "prop",
            "position_hint": "one localized perceived circle among the interior circular images",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          7,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 7, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "ba353976-5e18-4ba4-8c41-daefbb31850e",
  "resolved_model": "gpt",
  "updated_at": "2026-07-15T13:38:40.987132+00:00",
  "project_config_snapshot": {}
}