{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "5d2891ceb277be8d",
  "data": {
    "overlays": {
      "L03B03": {
        "bg_id": "L03B03",
        "fp_id": "fp_l03_stairs",
        "use_numbered_elements": [
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [
          12,
          13
        ],
        "base_markers_to_reference": [
          {
            "number": 2,
            "label": "lower switchback stair flights",
            "category": "area",
            "position_hint": "along the exterior wall between the entry threshold and stacked intermediate landings",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "intermediate stair landing",
            "category": "area",
            "position_hint": "mid-route between the repeated lower flights and the final ascent",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "final upper stair flight",
            "category": "area",
            "position_hint": "upper end of the stair assembly, ascending toward the rooftop landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "rooftop landing",
            "category": "area",
            "position_hint": "at the head of the final flight, directly outside the rooftop-room entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop-room footprint",
            "category": "area",
            "position_hint": "beyond the rooftop landing, bounded by the rooftop-room exterior walls",
            "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": "in the rooftop-room wall immediately adjoining the rooftop landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "steel railing and support assembly",
            "category": "prop",
            "position_hint": "following both sides of the exposed flights and the outer edges of the landings",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rooftop parapet edge",
            "category": "area",
            "position_hint": "around the exposed roof perimeter beside the landing and stair head",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "on the utility portion of the roof near but clear of the landing route",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "localized foul odor cue",
            "category": "prop",
            "position_hint": "upper stair approach immediately below the rooftop landing",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "half-open intrusion door state",
            "category": "opening",
            "position_hint": "at the iron entrance door facing the rooftop landing",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "open emergency escape door state",
            "category": "opening",
            "position_hint": "at the iron entrance door opening outward onto the escape route",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          2,
          3,
          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, 3, 4, 5, 6, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L03B06": {
        "bg_id": "L03B06",
        "fp_id": "fp_l03_stairs",
        "use_numbered_elements": [
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          12
        ],
        "ignore_numbered_elements": [
          11,
          13
        ],
        "base_markers_to_reference": [
          {
            "number": 4,
            "label": "final upper stair flight",
            "category": "area",
            "position_hint": "upper end of the stair assembly, ascending toward the rooftop landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "rooftop landing",
            "category": "area",
            "position_hint": "at the head of the final flight, directly outside the rooftop-room entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop-room footprint",
            "category": "area",
            "position_hint": "beyond the rooftop landing, bounded by the rooftop-room exterior walls",
            "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": "in the rooftop-room wall immediately adjoining the rooftop landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "steel railing and support assembly",
            "category": "prop",
            "position_hint": "following both sides of the exposed flights and the outer edges of the landings",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rooftop parapet edge",
            "category": "area",
            "position_hint": "around the exposed roof perimeter beside the landing and stair head",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "on the utility portion of the roof near but clear of the landing route",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "half-open intrusion door state",
            "category": "opening",
            "position_hint": "at the iron entrance door facing the rooftop landing",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "localized foul odor cue",
            "category": "prop",
            "position_hint": "upper stair approach immediately below the rooftop landing",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "open emergency escape door state",
            "category": "opening",
            "position_hint": "at the iron entrance door opening outward onto the escape route",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          4,
          5,
          6,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([4, 5, 6, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L03B05": {
        "bg_id": "L03B05",
        "fp_id": "fp_l03_stairs",
        "use_numbered_elements": [
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          13
        ],
        "ignore_numbered_elements": [
          11,
          12
        ],
        "base_markers_to_reference": [
          {
            "number": 4,
            "label": "final upper stair flight",
            "category": "area",
            "position_hint": "upper end of the stair assembly, ascending toward the rooftop landing",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "rooftop landing",
            "category": "area",
            "position_hint": "at the head of the final flight, directly outside the rooftop-room entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "rooftop-room footprint",
            "category": "area",
            "position_hint": "beyond the rooftop landing, bounded by the rooftop-room exterior walls",
            "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": "in the rooftop-room wall immediately adjoining the rooftop landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "steel railing and support assembly",
            "category": "prop",
            "position_hint": "following both sides of the exposed flights and the outer edges of the landings",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rooftop parapet edge",
            "category": "area",
            "position_hint": "around the exposed roof perimeter beside the landing and stair head",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "on the utility portion of the roof near but clear of the landing route",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "open emergency escape door state",
            "category": "opening",
            "position_hint": "at the iron entrance door opening outward onto the escape route",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "localized foul odor cue",
            "category": "prop",
            "position_hint": "upper stair approach immediately below the rooftop landing",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "half-open intrusion door state",
            "category": "opening",
            "position_hint": "at the iron entrance door facing the rooftop landing",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          4,
          5,
          6,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([4, 5, 6, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L03B04": {
        "bg_id": "L03B04",
        "fp_id": "fp_l03_yard",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "villa building footprint",
            "category": "area",
            "position_hint": "north side of the plan, forming the rear edge of the front yard",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "front yard",
            "category": "area",
            "position_hint": "central open area between the street gate and villa frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "vehicle approach",
            "category": "area",
            "position_hint": "south side, extending from the street edge toward the yard gate",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "bicycle parking recess",
            "category": "area",
            "position_hint": "rear corner of the yard beside the villa side wall and beneath or near the exterior stair",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "yard gate",
            "category": "opening",
            "position_hint": "south boundary where the vehicle approach enters the front yard",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "ground-level entrance door",
            "category": "opening",
            "position_hint": "front wall of the villa facing the central yard",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "exterior metal stair",
            "category": "area",
            "position_hint": "along one exterior side wall, beginning near the yard and continuing toward the rooftop",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "rooftop-room footprint",
            "category": "area",
            "position_hint": "inset above the main building footprint near the upper end of the exterior stair",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "left frontage window",
            "category": "opening",
            "position_hint": "front facade on one side of the ground-level entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "right frontage window",
            "category": "opening",
            "position_hint": "front facade on the opposite side of the ground-level entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "boundary wall",
            "category": "area",
            "position_hint": "around the exposed edges of the yard with an interruption at the gate",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "hastily parked bicycle",
            "category": "prop",
            "position_hint": "inside the bicycle parking recess at the rear side of the yard",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "police vehicle with active light bar",
            "category": "prop",
            "position_hint": "on the vehicle approach immediately outside or partly through the yard gate",
            "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,
          7,
          8,
          11
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 7, 8, 11]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B02": {
        "bg_id": "L04B02",
        "fp_id": "fp_l04_rooftop",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [
          13,
          14,
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop utility zone",
            "category": "area",
            "position_hint": "main exposed roof surface surrounding the rooftop dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop dwelling footprint",
            "category": "area",
            "position_hint": "along one side of the rooftop, with its entrance facade facing the open roof",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "drying service zone",
            "category": "area",
            "position_hint": "open section of roof containing the clothesline and drying platform",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "external metal stair and landing",
            "category": "area",
            "position_hint": "roof edge beside the dwelling entrance, terminating at the rooftop surface",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "perimeter parapet",
            "category": "area",
            "position_hint": "continuous low boundary around exposed rooftop edges, interrupted only at the stair landing as required",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "open utility portion of the roof, separated from the entrance path and drying platform",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "fixed clothesline",
            "category": "prop",
            "position_hint": "within the drying service zone between two fixed posts",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "beneath or beside the clothesline in the drying service zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "wind-blown dried herb leaves",
            "category": "prop",
            "position_hint": "on and around the drying platform, with loose leaves crossing the rooftop surface",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "advertising flyer at door gap",
            "category": "prop",
            "position_hint": "caught in the gap of the iron entrance door during forced entry",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "forced-entry door ajar state",
            "category": "opening",
            "position_hint": "iron entrance door shown slightly open after its lock is manipulated",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "attack silhouette in window",
            "category": "prop",
            "position_hint": "confined to the visible surface of the facade window during the attack",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L04B01": {
        "bg_id": "L04B01",
        "fp_id": "fp_l04_rooftop",
        "use_numbered_elements": [
          1,
          2,
          4,
          5,
          6,
          7,
          8,
          9,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [
          12
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "rooftop utility zone",
            "category": "area",
            "position_hint": "main exposed roof surface surrounding the rooftop dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop dwelling footprint",
            "category": "area",
            "position_hint": "along one side of the rooftop, with its entrance facade facing the open roof",
            "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": "narrow exterior strip directly before the iron entrance door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "external metal stair and landing",
            "category": "area",
            "position_hint": "roof edge beside the dwelling entrance, terminating at the rooftop surface",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "perimeter parapet",
            "category": "area",
            "position_hint": "continuous low boundary around exposed rooftop edges, interrupted only at the stair landing as required",
            "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": "entrance facade of the rooftop dwelling, opening from the threshold into the dwelling",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "small facade window",
            "category": "opening",
            "position_hint": "same exterior wall as the iron entrance door, offset to one side",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "rooftop water tank",
            "category": "prop",
            "position_hint": "open utility portion of the roof, separated from the entrance path and drying platform",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "advertising flyer at door gap",
            "category": "prop",
            "position_hint": "caught in the gap of the iron entrance door during forced entry",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "forced-entry door ajar state",
            "category": "opening",
            "position_hint": "iron entrance door shown slightly open after its lock is manipulated",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "attack silhouette in window",
            "category": "prop",
            "position_hint": "confined to the visible surface of the facade window during the attack",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "wind-blown dried herb leaves",
            "category": "prop",
            "position_hint": "on and around the drying platform, with loose leaves crossing the rooftop surface",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          4,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B02": {
        "bg_id": "L05B02",
        "fp_id": "fp_l05_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          24
        ],
        "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 between the rooftop landing and living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Steel entrance door",
            "category": "opening",
            "position_hint": "southwest exterior wall, opening inward from the rooftop landing",
            "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": "living-area wall opposite the main seating and dining sightline",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Dining table and chairs",
            "category": "furniture",
            "position_hint": "center of the shared area between the television and kitchenette",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Linear kitchenette",
            "category": "area",
            "position_hint": "north side of the living-dining area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Kitchen sink",
            "category": "prop",
            "position_hint": "within the linear kitchenette along the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Stovetop",
            "category": "prop",
            "position_hint": "beside the sink along the north kitchen counter",
            "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": "edge of the living area near the route to the bedrooms",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "Bedroom blood pool and spatters",
            "category": "prop",
            "position_hint": "daughter bedroom floor and nearby surfaces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloody footprints to curtain",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading from the doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain at the daughter bedroom window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Reddened wrist mark",
            "category": "prop",
            "position_hint": "subjective close foreground on a character wrist in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red wall circle above bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall adjacent to or above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "daughter bedroom, subtly displaced from their earlier positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Bathroom mirror red circle",
            "category": "prop",
            "position_hint": "subjective reflection on the bathroom wall as seen in the mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Melting face in framed photo",
            "category": "prop",
            "position_hint": "subjective distortion 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": "Pinned bloodied photo in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall beside the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Searched household disorder",
            "category": "prop",
            "position_hint": "across cabinets, loose household goods, and visible rooms",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Dusk intruder footprints",
            "category": "prop",
            "position_hint": "from the entrance across the shared area toward the bedrooms",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the shared area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the initial night incident",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B05": {
        "bg_id": "L05B05",
        "fp_id": "fp_l05_interior",
        "use_numbered_elements": [
          3,
          13,
          14,
          15,
          16,
          25,
          26,
          27,
          38
        ],
        "ignore_numbered_elements": [
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37
        ],
        "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": 13,
            "label": "Daughter bedroom",
            "category": "area",
            "position_hint": "northeast portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Daughter bed",
            "category": "furniture",
            "position_hint": "against the interior side of the daughter bedroom, near the curtained window wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Daughter bedroom door",
            "category": "opening",
            "position_hint": "between the central shared area and daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Curtained bedroom window",
            "category": "opening",
            "position_hint": "exterior wall of the daughter bedroom beside the bed",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 25,
            "label": "Bedroom blood pool and spatters",
            "category": "prop",
            "position_hint": "daughter bedroom floor and nearby surfaces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloody footprints to curtain",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading from the doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain at the daughter bedroom window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the initial night incident",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 28,
            "label": "Reddened wrist mark",
            "category": "prop",
            "position_hint": "subjective close foreground on a character wrist in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red wall circle above bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall adjacent to or above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "daughter bedroom, subtly displaced from their earlier positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Bathroom mirror red circle",
            "category": "prop",
            "position_hint": "subjective reflection on the bathroom wall as seen in the mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Melting face in framed photo",
            "category": "prop",
            "position_hint": "subjective distortion 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": "Pinned bloodied photo in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall beside the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Searched household disorder",
            "category": "prop",
            "position_hint": "across cabinets, loose household goods, and visible rooms",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Dusk intruder footprints",
            "category": "prop",
            "position_hint": "from the entrance across the shared area toward the bedrooms",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the shared area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3,
          13
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([3, 13]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B07": {
        "bg_id": "L05B07",
        "fp_id": "fp_l05_interior",
        "use_numbered_elements": [
          13,
          14,
          15,
          16,
          28,
          29
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38
        ],
        "base_markers_to_reference": [
          {
            "number": 13,
            "label": "Daughter bedroom",
            "category": "area",
            "position_hint": "northeast portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Daughter bed",
            "category": "furniture",
            "position_hint": "against the interior side of the daughter bedroom, near the curtained window wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Daughter bedroom door",
            "category": "opening",
            "position_hint": "between the central shared area and daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Curtained bedroom window",
            "category": "opening",
            "position_hint": "exterior wall of the daughter bedroom beside the bed",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 28,
            "label": "Reddened wrist mark",
            "category": "prop",
            "position_hint": "subjective close foreground on a character wrist in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red wall circle above bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall adjacent to or above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "Bedroom blood pool and spatters",
            "category": "prop",
            "position_hint": "daughter bedroom floor and nearby surfaces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloody footprints to curtain",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading from the doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain at the daughter bedroom window",
            "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": "daughter bedroom, subtly displaced from their earlier positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Bathroom mirror red circle",
            "category": "prop",
            "position_hint": "subjective reflection on the bathroom wall as seen in the mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Melting face in framed photo",
            "category": "prop",
            "position_hint": "subjective distortion 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": "Pinned bloodied photo in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall beside the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Searched household disorder",
            "category": "prop",
            "position_hint": "across cabinets, loose household goods, and visible rooms",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Dusk intruder footprints",
            "category": "prop",
            "position_hint": "from the entrance across the shared area toward the bedrooms",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the shared area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the initial night incident",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          13
        ],
        "dominant_target_unit_marker_number": 13,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L05B06": {
        "bg_id": "L05B06",
        "fp_id": "fp_l05_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          20,
          21,
          24,
          30
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          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 between the rooftop landing and living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Steel entrance door",
            "category": "opening",
            "position_hint": "southwest exterior wall, opening inward from the rooftop landing",
            "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": "living-area wall opposite the main seating and dining sightline",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Dining table and chairs",
            "category": "furniture",
            "position_hint": "center of the shared area between the television and kitchenette",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Linear kitchenette",
            "category": "area",
            "position_hint": "north side of the living-dining area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Kitchen sink",
            "category": "prop",
            "position_hint": "within the linear kitchenette along the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Stovetop",
            "category": "prop",
            "position_hint": "beside the sink along the north kitchen counter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "Main bedroom",
            "category": "area",
            "position_hint": "southeast portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "Main bed",
            "category": "furniture",
            "position_hint": "against an exterior wall inside the main bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Main bedroom door",
            "category": "opening",
            "position_hint": "between the central shared area and main bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "Daughter bedroom",
            "category": "area",
            "position_hint": "northeast portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Daughter bed",
            "category": "furniture",
            "position_hint": "against the interior side of the daughter bedroom, near the curtained window wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Daughter bedroom door",
            "category": "opening",
            "position_hint": "between the central shared area and daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Curtained bedroom window",
            "category": "opening",
            "position_hint": "exterior wall of the daughter bedroom beside the bed",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Bathroom",
            "category": "area",
            "position_hint": "compact service room between or beside the bedrooms",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Bathroom door",
            "category": "opening",
            "position_hint": "opening from the shared area or short interior passage into the bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Bathroom washbasin",
            "category": "prop",
            "position_hint": "inside the bathroom near the door",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Toilet",
            "category": "prop",
            "position_hint": "far side of the compact bathroom",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Bathroom mirror",
            "category": "prop",
            "position_hint": "wall directly above the washbasin",
            "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": "edge of the living area near the route to the bedrooms",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 30,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "daughter bedroom, subtly displaced from their earlier positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "Bedroom blood pool and spatters",
            "category": "prop",
            "position_hint": "daughter bedroom floor and nearby surfaces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloody footprints to curtain",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading from the doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain at the daughter bedroom window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Reddened wrist mark",
            "category": "prop",
            "position_hint": "subjective close foreground on a character wrist in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red wall circle above bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall adjacent to or above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Bathroom mirror red circle",
            "category": "prop",
            "position_hint": "subjective reflection on the bathroom wall as seen in the mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Melting face in framed photo",
            "category": "prop",
            "position_hint": "subjective distortion 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": "Pinned bloodied photo in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall beside the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Searched household disorder",
            "category": "prop",
            "position_hint": "across cabinets, loose household goods, and visible rooms",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Dusk intruder footprints",
            "category": "prop",
            "position_hint": "from the entrance across the shared area toward the bedrooms",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the shared area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the initial night incident",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          7,
          10,
          13,
          17
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 7, 10, 13, 17]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B01": {
        "bg_id": "L05B01",
        "fp_id": "fp_l05_interior",
        "use_numbered_elements": [
          3,
          6,
          17,
          18,
          19,
          20,
          21,
          31,
          32
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          30,
          33,
          34,
          35,
          36,
          37,
          38
        ],
        "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 and chairs",
            "category": "furniture",
            "position_hint": "center of the shared area between the television and kitchenette",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "Bathroom",
            "category": "area",
            "position_hint": "compact service room between or beside the bedrooms",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "Bathroom door",
            "category": "opening",
            "position_hint": "opening from the shared area or short interior passage into the bathroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "Bathroom washbasin",
            "category": "prop",
            "position_hint": "inside the bathroom near the door",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "Toilet",
            "category": "prop",
            "position_hint": "far side of the compact bathroom",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "Bathroom mirror",
            "category": "prop",
            "position_hint": "wall directly above the washbasin",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 31,
            "label": "Bathroom mirror red circle",
            "category": "prop",
            "position_hint": "subjective reflection on the bathroom wall as seen in the mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Melting face in framed photo",
            "category": "prop",
            "position_hint": "subjective distortion 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": "Bedroom blood pool and spatters",
            "category": "prop",
            "position_hint": "daughter bedroom floor and nearby surfaces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloody footprints to curtain",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading from the doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain at the daughter bedroom window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Reddened wrist mark",
            "category": "prop",
            "position_hint": "subjective close foreground on a character wrist in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red wall circle above bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall adjacent to or above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "daughter bedroom, subtly displaced from their earlier positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "Pinned bloodied photo in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall beside the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "Searched household disorder",
            "category": "prop",
            "position_hint": "across cabinets, loose household goods, and visible rooms",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Dusk intruder footprints",
            "category": "prop",
            "position_hint": "from the entrance across the shared area toward the bedrooms",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the shared area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the initial night incident",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3,
          17
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([3, 17]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B03": {
        "bg_id": "L05B03",
        "fp_id": "fp_l05_interior",
        "use_numbered_elements": [
          13,
          14,
          15,
          16,
          33
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          34,
          35,
          36,
          37,
          38
        ],
        "base_markers_to_reference": [
          {
            "number": 13,
            "label": "Daughter bedroom",
            "category": "area",
            "position_hint": "northeast portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "Daughter bed",
            "category": "furniture",
            "position_hint": "against the interior side of the daughter bedroom, near the curtained window wall",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Daughter bedroom door",
            "category": "opening",
            "position_hint": "between the central shared area and daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "Curtained bedroom window",
            "category": "opening",
            "position_hint": "exterior wall of the daughter bedroom beside the bed",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 33,
            "label": "Pinned bloodied photo in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall beside the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "Bedroom blood pool and spatters",
            "category": "prop",
            "position_hint": "daughter bedroom floor and nearby surfaces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloody footprints to curtain",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading from the doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain at the daughter bedroom window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Reddened wrist mark",
            "category": "prop",
            "position_hint": "subjective close foreground on a character wrist in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red wall circle above bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall adjacent to or above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "daughter bedroom, subtly displaced from their earlier positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Bathroom mirror red circle",
            "category": "prop",
            "position_hint": "subjective reflection on the bathroom wall as seen in the mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Melting face in framed photo",
            "category": "prop",
            "position_hint": "subjective distortion 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": 34,
            "label": "Searched household disorder",
            "category": "prop",
            "position_hint": "across cabinets, loose household goods, and visible rooms",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Dusk intruder footprints",
            "category": "prop",
            "position_hint": "from the entrance across the shared area toward the bedrooms",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the shared area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the initial night incident",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          13
        ],
        "dominant_target_unit_marker_number": 13,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L05B04": {
        "bg_id": "L05B04",
        "fp_id": "fp_l05_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          12,
          15,
          34,
          35,
          36,
          37
        ],
        "ignore_numbered_elements": [
          25,
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          38
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Entry threshold",
            "category": "area",
            "position_hint": "southwest edge of the dwelling between the rooftop landing and living area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Steel entrance door",
            "category": "opening",
            "position_hint": "southwest exterior wall, opening inward from the rooftop landing",
            "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": "living-area wall opposite the main seating and dining sightline",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "Dining table and chairs",
            "category": "furniture",
            "position_hint": "center of the shared area between the television and kitchenette",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Linear kitchenette",
            "category": "area",
            "position_hint": "north side of the living-dining area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Kitchen sink",
            "category": "prop",
            "position_hint": "within the linear kitchenette along the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Stovetop",
            "category": "prop",
            "position_hint": "beside the sink along the north kitchen counter",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Main bedroom door",
            "category": "opening",
            "position_hint": "between the central shared area and main bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "Daughter bedroom door",
            "category": "opening",
            "position_hint": "between the central shared area and daughter bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 34,
            "label": "Searched household disorder",
            "category": "prop",
            "position_hint": "across cabinets, loose household goods, and visible rooms",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "Dusk intruder footprints",
            "category": "prop",
            "position_hint": "from the entrance across the shared area toward the bedrooms",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "Open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "Overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the shared area",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 25,
            "label": "Bedroom blood pool and spatters",
            "category": "prop",
            "position_hint": "daughter bedroom floor and nearby surfaces",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 26,
            "label": "Bloody footprints to curtain",
            "category": "prop",
            "position_hint": "daughter bedroom floor leading from the doorway toward the curtained window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "Body behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain at the daughter bedroom window",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "Reddened wrist mark",
            "category": "prop",
            "position_hint": "subjective close foreground on a character wrist in the daughter bedroom",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "Red wall circle above bed",
            "category": "prop",
            "position_hint": "daughter bedroom wall adjacent to or above the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "Shifted backpack and doll",
            "category": "prop",
            "position_hint": "daughter bedroom, subtly displaced from their earlier positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "Bathroom mirror red circle",
            "category": "prop",
            "position_hint": "subjective reflection on the bathroom wall as seen in the mirror",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "Melting face in framed photo",
            "category": "prop",
            "position_hint": "subjective distortion 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": "Pinned bloodied photo in red circle",
            "category": "prop",
            "position_hint": "daughter bedroom wall beside the bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "Two tea cups with one overturned",
            "category": "prop",
            "position_hint": "on the dining table during the initial night incident",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3,
          7
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3, 7]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L07B01": {
        "bg_id": "L07B01",
        "fp_id": "fp_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": "entrance threshold zone",
            "category": "area",
            "position_hint": "south center, immediately inside the main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "shared central aisle",
            "category": "area",
            "position_hint": "center of the shelter, extending north from the entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "kennel housing zone",
            "category": "area",
            "position_hint": "northern half of the shelter beyond the secure access gate",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "veterinary care zone",
            "category": "area",
            "position_hint": "southwest side, open toward the central aisle",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "grooming and wash zone",
            "category": "area",
            "position_hint": "southeast side, open toward the central aisle",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "main entrance door",
            "category": "opening",
            "position_hint": "center of the south exterior wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "secure kennel access gate",
            "category": "opening",
            "position_hint": "north end of the central aisle at the kennel-zone boundary",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "north window group",
            "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": 9,
            "label": "west window group",
            "category": "opening",
            "position_hint": "west exterior wall beside the veterinary and kennel areas",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "east window group",
            "category": "opening",
            "position_hint": "east exterior wall beside the grooming and kennel areas",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "west kennel bank",
            "category": "furniture",
            "position_hint": "along the west side of the kennel housing zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "north kennel bank",
            "category": "furniture",
            "position_hint": "along the north wall of the kennel housing zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "veterinary examination table",
            "category": "furniture",
            "position_hint": "center of the veterinary care zone with working clearance around it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "built-in medicine cabinet",
            "category": "furniture",
            "position_hint": "west wall of the veterinary care zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "clinical sink",
            "category": "furniture",
            "position_hint": "northwest corner of the veterinary care zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "grooming table",
            "category": "furniture",
            "position_hint": "center of the grooming and wash zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "dog washing tub",
            "category": "furniture",
            "position_hint": "against the east wall of the grooming and wash zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "built-in supply cabinet",
            "category": "furniture",
            "position_hint": "south wall of the grooming and wash zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 19,
            "label": "dogs occupying kennel cages",
            "category": "prop",
            "position_hint": "inside the west and north kennel banks during the busy daytime state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "dog receiving vaccination",
            "category": "prop",
            "position_hint": "at the veterinary examination table during the busy daytime state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "dog and loose grooming supplies",
            "category": "prop",
            "position_hint": "at the grooming table and washing tub during the busy 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,
          4,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L10B01": {
        "bg_id": "L10B01",
        "fp_id": "fp_l10_market_store",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared sales floor",
            "category": "area",
            "position_hint": "large central and rear 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, immediately inside the customer entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "checkout service zone",
            "category": "area",
            "position_hint": "southwest side of the sales floor beside the entrance route",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "automatic sliding entrance",
            "category": "opening",
            "position_hint": "center of the south exterior wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "storefront glazing",
            "category": "opening",
            "position_hint": "south frontage flanking the automatic entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "checkout counter bank",
            "category": "furniture",
            "position_hint": "inside the southwest frontage, oriented toward the entrance and sales floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "central gondola shelf rows",
            "category": "furniture",
            "position_hint": "parallel rows through the middle of the sales floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "refrigerated display cases",
            "category": "furniture",
            "position_hint": "continuous run along the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low merchandise display islands",
            "category": "furniture",
            "position_hint": "front half of the sales floor between the entrance route and central aisles",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "perimeter wall shelving",
            "category": "furniture",
            "position_hint": "along the east and west walls around the central sales floor",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "stocking cartons",
            "category": "prop",
            "position_hint": "temporarily placed beside a central shelf aisle during dusk stocking activity",
            "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)"
        ]
      },
      "L10B05": {
        "bg_id": "L10B05",
        "fp_id": "fp_l10_market_store",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10
        ],
        "ignore_numbered_elements": [
          11
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared sales floor",
            "category": "area",
            "position_hint": "large central and rear 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, immediately inside the customer entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "checkout service zone",
            "category": "area",
            "position_hint": "southwest side of the sales floor beside the entrance route",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "automatic sliding entrance",
            "category": "opening",
            "position_hint": "center of the south exterior wall",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "storefront glazing",
            "category": "opening",
            "position_hint": "south frontage flanking the automatic entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "checkout counter bank",
            "category": "furniture",
            "position_hint": "inside the southwest frontage, oriented toward the entrance and sales floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "central gondola shelf rows",
            "category": "furniture",
            "position_hint": "parallel rows through the middle of the sales floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "refrigerated display cases",
            "category": "furniture",
            "position_hint": "continuous run along the north wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "low merchandise display islands",
            "category": "furniture",
            "position_hint": "front half of the sales floor between the entrance route and central aisles",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "perimeter wall shelving",
            "category": "furniture",
            "position_hint": "along the east and west walls around the central sales floor",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "stocking cartons",
            "category": "prop",
            "position_hint": "temporarily placed beside a central shelf aisle during dusk stocking activity",
            "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)"
        ]
      },
      "L16B01": {
        "bg_id": "L16B01",
        "fp_id": "fp_l16_cctv_room",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "workstation zone",
            "category": "area",
            "position_hint": "north half of the control room around the monitor desk",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rear standing area",
            "category": "area",
            "position_hint": "south half of the room behind the operator seating",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "access door",
            "category": "opening",
            "position_hint": "southwest wall, opening inward into the rear standing area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "monitor desk",
            "category": "furniture",
            "position_hint": "along the north wall, facing south toward the operator seating",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "monitor bank",
            "category": "prop",
            "position_hint": "on the north-side desk, arranged as a compact row of digital displays",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "left operator chair",
            "category": "furniture",
            "position_hint": "center-left in front of the monitor desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "right operator chair",
            "category": "furniture",
            "position_hint": "center-right in front of the monitor desk",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 8,
            "label": "unreadably dark recording segment",
            "category": "prop",
            "position_hint": "confined to the display surfaces of the monitor bank during review",
            "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
        ],
        "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)"
        ]
      },
      "L12B03": {
        "bg_id": "L12B03",
        "fp_id": "fp_l12_police_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          9,
          11
        ],
        "ignore_numbered_elements": [
          12,
          13,
          14
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared duty office",
            "category": "area",
            "position_hint": "central and largest enclosed area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "main corridor entry",
            "category": "opening",
            "position_hint": "southwest wall of shared duty office",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "meeting-room exit",
            "category": "opening",
            "position_hint": "east wall near northeast corner",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "duty desk cluster",
            "category": "furniture",
            "position_hint": "west half of shared work zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "senior detective desk",
            "category": "furniture",
            "position_hint": "south-central part of shared work zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "tracking desk",
            "category": "furniture",
            "position_hint": "north-central part of shared work zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "desktop monitor",
            "category": "prop",
            "position_hint": "on north side of tracking desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "coffee service counter",
            "category": "prop",
            "position_hint": "small service zone along west wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "unanswered-call phone state",
            "category": "prop",
            "position_hint": "temporarily associated with the night-duty office near the occupied desks",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "exposed case photographs",
            "category": "prop",
            "position_hint": "temporarily scattered across the senior detective desk",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "tracked-location screen result",
            "category": "prop",
            "position_hint": "temporarily displayed on the tracking desk monitor",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "folded coordinate note",
            "category": "prop",
            "position_hint": "temporarily written beside the tracking desk before concealment",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1
        ],
        "dominant_target_unit_marker_number": 1,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L12B01": {
        "bg_id": "L12B01",
        "fp_id": "fp_l12_police_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          12,
          13
        ],
        "ignore_numbered_elements": [
          11,
          14
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared duty office",
            "category": "area",
            "position_hint": "central and largest enclosed area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "main corridor entry",
            "category": "opening",
            "position_hint": "southwest wall of shared duty office",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "meeting-room exit",
            "category": "opening",
            "position_hint": "east wall near northeast corner",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "duty desk cluster",
            "category": "furniture",
            "position_hint": "west half of shared work zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "senior detective desk",
            "category": "furniture",
            "position_hint": "south-central part of shared work zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "tracking desk",
            "category": "furniture",
            "position_hint": "north-central part of shared work zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "desktop monitor",
            "category": "prop",
            "position_hint": "on north side of tracking desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "evidence review table",
            "category": "furniture",
            "position_hint": "southeast side of shared work zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "coffee service counter",
            "category": "prop",
            "position_hint": "small service zone along west wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "two-module window bank",
            "category": "opening",
            "position_hint": "north exterior wall above the tracking desk area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "exposed case photographs",
            "category": "prop",
            "position_hint": "temporarily scattered across the senior detective desk",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "tracked-location screen result",
            "category": "prop",
            "position_hint": "temporarily displayed on the tracking desk monitor",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "unanswered-call phone state",
            "category": "prop",
            "position_hint": "temporarily associated with the night-duty office near the occupied desks",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "folded coordinate note",
            "category": "prop",
            "position_hint": "temporarily written beside the tracking desk before concealment",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1
        ],
        "dominant_target_unit_marker_number": 1,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L12B02": {
        "bg_id": "L12B02",
        "fp_id": "fp_l12_police_office",
        "use_numbered_elements": [
          1,
          3,
          5,
          6,
          7,
          8,
          10,
          12,
          13,
          14
        ],
        "ignore_numbered_elements": [
          11
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared duty office",
            "category": "area",
            "position_hint": "central and largest enclosed area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "meeting-room exit",
            "category": "opening",
            "position_hint": "east wall near northeast corner",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "senior detective desk",
            "category": "furniture",
            "position_hint": "south-central part of shared work zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "tracking desk",
            "category": "furniture",
            "position_hint": "north-central part of shared work zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "desktop monitor",
            "category": "prop",
            "position_hint": "on north side of tracking desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "evidence review table",
            "category": "furniture",
            "position_hint": "southeast side of shared work zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "two-module window bank",
            "category": "opening",
            "position_hint": "north exterior wall above the tracking desk area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "exposed case photographs",
            "category": "prop",
            "position_hint": "temporarily scattered across the senior detective desk",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "tracked-location screen result",
            "category": "prop",
            "position_hint": "temporarily displayed on the tracking desk monitor",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "folded coordinate note",
            "category": "prop",
            "position_hint": "temporarily written beside the tracking desk before concealment",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "unanswered-call phone state",
            "category": "prop",
            "position_hint": "temporarily associated with the night-duty office near the occupied desks",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1
        ],
        "dominant_target_unit_marker_number": 1,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L13B01": {
        "bg_id": "L13B01",
        "fp_id": "fp_l13_station_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "station frontage",
            "category": "area",
            "position_hint": "north side of plan, forming the shallow service-zone building strip",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "center of the north frontage immediately outside the main entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "main entrance",
            "category": "opening",
            "position_hint": "center of the north frontage, opening onto the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "left front window",
            "category": "opening",
            "position_hint": "north frontage wall, west of the main entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "right front window",
            "category": "opening",
            "position_hint": "north frontage wall, east of the main entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bicycle parking bay",
            "category": "area",
            "position_hint": "east side of the entrance threshold beside the station frontage",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "fixed bicycle rack",
            "category": "prop",
            "position_hint": "within the bicycle parking bay, parallel to the east frontage",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "front forecourt",
            "category": "area",
            "position_hint": "central exterior area south of the entrance threshold",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "departure path",
            "category": "area",
            "position_hint": "running from the bicycle parking bay across the southeast edge of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 10,
            "label": "departing bicycle",
            "category": "prop",
            "position_hint": "initially beside the fixed bicycle rack, moving southeast onto the departure path",
            "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,
          6,
          8,
          9
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 6, 8, 9]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L18B02": {
        "bg_id": "L18B02",
        "fp_id": "fp_l18_boat_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          7,
          8,
          9,
          11
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open working deck",
            "category": "area",
            "position_hint": "broad aft and central portion of the vessel behind the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "wheelhouse control zone",
            "category": "area",
            "position_hint": "compact enclosed cabin at the forward end of the working deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse approach threshold",
            "category": "area",
            "position_hint": "narrow exterior landing directly aft of the wheelhouse door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "wheelhouse exterior door",
            "category": "opening",
            "position_hint": "aft wall of the wheelhouse, opening from the deck approach into the control zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "starboard wheelhouse window",
            "category": "opening",
            "position_hint": "starboard side wall of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "port safety railing",
            "category": "prop",
            "position_hint": "continuous along the port edge of the open deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "starboard safety railing",
            "category": "prop",
            "position_hint": "continuous along the starboard edge of the open deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "old printed photograph held for inspection",
            "category": "prop",
            "position_hint": "temporarily held between people on the open deck during the photograph-inspection moment; never draw on the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "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)"
        ]
      },
      "L18B03": {
        "bg_id": "L18B03",
        "fp_id": "fp_l18_boat_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          6,
          8,
          9
        ],
        "ignore_numbered_elements": [
          11
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open working deck",
            "category": "area",
            "position_hint": "broad aft and central portion of the vessel behind the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "wheelhouse control zone",
            "category": "area",
            "position_hint": "compact enclosed cabin at the forward end of the working deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse approach threshold",
            "category": "area",
            "position_hint": "narrow exterior landing directly aft of the wheelhouse door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "wheelhouse exterior door",
            "category": "opening",
            "position_hint": "aft wall of the wheelhouse, opening from the deck approach into the control zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "port wheelhouse window",
            "category": "opening",
            "position_hint": "port side wall of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "port safety railing",
            "category": "prop",
            "position_hint": "continuous along the port edge of the open deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "starboard safety railing",
            "category": "prop",
            "position_hint": "continuous along the starboard edge of the open deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "old printed photograph held for inspection",
            "category": "prop",
            "position_hint": "temporarily held between people on the open deck during the photograph-inspection moment; never draw on the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "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)"
        ]
      },
      "L18B01": {
        "bg_id": "L18B01",
        "fp_id": "fp_l18_boat_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10
        ],
        "ignore_numbered_elements": [
          11
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open working deck",
            "category": "area",
            "position_hint": "broad aft and central portion of the vessel behind the wheelhouse",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "wheelhouse control zone",
            "category": "area",
            "position_hint": "compact enclosed cabin at the forward end of the working deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse approach threshold",
            "category": "area",
            "position_hint": "narrow exterior landing directly aft of the wheelhouse door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "wheelhouse exterior door",
            "category": "opening",
            "position_hint": "aft wall of the wheelhouse, opening from the deck approach into the control zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "front windshield bank",
            "category": "opening",
            "position_hint": "forward wall of the wheelhouse above the steering position",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "port wheelhouse window",
            "category": "opening",
            "position_hint": "port side wall of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "starboard wheelhouse window",
            "category": "opening",
            "position_hint": "starboard side wall of the wheelhouse",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "port safety railing",
            "category": "prop",
            "position_hint": "continuous along the port edge of the open deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "starboard safety railing",
            "category": "prop",
            "position_hint": "continuous along the starboard edge of the open deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "steering console and wheel",
            "category": "prop",
            "position_hint": "inside the wheelhouse against the forward windshield bank",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "old printed photograph held for inspection",
            "category": "prop",
            "position_hint": "temporarily held between people on the open deck during the photograph-inspection moment; never draw on the base floor plan",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "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)"
        ]
      },
      "L19B03": {
        "bg_id": "L19B03",
        "fp_id": "fp_l19_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          9,
          10,
          11,
          12,
          13
        ],
        "ignore_numbered_elements": [
          14,
          15,
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "wheelhouse enclosure",
            "category": "area",
            "position_hint": "entire compact rectangular enclosed cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "helm service zone",
            "category": "area",
            "position_hint": "forward end of wheelhouse beneath windshield bank",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "standing confrontation area",
            "category": "area",
            "position_hint": "open central floor immediately aft of helm controls",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "forward windshield bank",
            "category": "opening",
            "position_hint": "across forward wall above helm console",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "port side window",
            "category": "opening",
            "position_hint": "forward half of port wall beside helm service zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "starboard side window",
            "category": "opening",
            "position_hint": "forward half of starboard wall opposite port window",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "helm console",
            "category": "furniture",
            "position_hint": "forward wall, centered slightly toward starboard side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "steering wheel",
            "category": "prop",
            "position_hint": "operator-facing side of helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "round gauge cluster",
            "category": "prop",
            "position_hint": "upper face of helm console near steering wheel",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "throttle controls",
            "category": "prop",
            "position_hint": "starboard end of helm console within easy reach",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "navigation display",
            "category": "prop",
            "position_hint": "forward console beside round gauge cluster",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 14,
            "label": "subjective spinning circular distortion",
            "category": "prop",
            "position_hint": "subjective field around wheel, gauges, and other circular control forms; never draw on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "subjective red circle apparition",
            "category": "prop",
            "position_hint": "newly perceived among forward circular instruments; never draw on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "collapse interaction position",
            "category": "prop",
            "position_hint": "central standing confrontation area just aft of helm console; never draw on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": 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)"
        ]
      },
      "L19B02": {
        "bg_id": "L19B02",
        "fp_id": "fp_l19_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          9,
          10,
          11,
          12,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "wheelhouse enclosure",
            "category": "area",
            "position_hint": "entire compact rectangular enclosed cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "helm service zone",
            "category": "area",
            "position_hint": "forward end of wheelhouse beneath windshield bank",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "standing confrontation area",
            "category": "area",
            "position_hint": "open central floor immediately aft of helm controls",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "forward windshield bank",
            "category": "opening",
            "position_hint": "across forward wall above helm console",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "port side window",
            "category": "opening",
            "position_hint": "forward half of port wall beside helm service zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "starboard side window",
            "category": "opening",
            "position_hint": "forward half of starboard wall opposite port window",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "helm console",
            "category": "furniture",
            "position_hint": "forward wall, centered slightly toward starboard side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "steering wheel",
            "category": "prop",
            "position_hint": "operator-facing side of helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "round gauge cluster",
            "category": "prop",
            "position_hint": "upper face of helm console near steering wheel",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "throttle controls",
            "category": "prop",
            "position_hint": "starboard end of helm console within easy reach",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "navigation display",
            "category": "prop",
            "position_hint": "forward console beside round gauge cluster",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "subjective spinning circular distortion",
            "category": "prop",
            "position_hint": "subjective field around wheel, gauges, and other circular control forms; never draw on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "subjective red circle apparition",
            "category": "prop",
            "position_hint": "newly perceived among forward circular instruments; never draw on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 16,
            "label": "collapse interaction position",
            "category": "prop",
            "position_hint": "central standing confrontation area just aft of helm console; never draw on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L19B01": {
        "bg_id": "L19B01",
        "fp_id": "fp_l19_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          8,
          9,
          10,
          11,
          12,
          13,
          16
        ],
        "ignore_numbered_elements": [
          14,
          15
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "wheelhouse enclosure",
            "category": "area",
            "position_hint": "entire compact rectangular enclosed cabin",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "helm service zone",
            "category": "area",
            "position_hint": "forward end of wheelhouse beneath windshield bank",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "standing confrontation area",
            "category": "area",
            "position_hint": "open central floor immediately aft of helm controls",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "aft threshold zone",
            "category": "area",
            "position_hint": "narrow floor strip inside aft deck door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "forward windshield bank",
            "category": "opening",
            "position_hint": "across forward wall above helm console",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "port side window",
            "category": "opening",
            "position_hint": "forward half of port wall beside helm service zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "aft deck door",
            "category": "opening",
            "position_hint": "aft wall opening aligned with threshold zone",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "helm console",
            "category": "furniture",
            "position_hint": "forward wall, centered slightly toward starboard side",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "steering wheel",
            "category": "prop",
            "position_hint": "operator-facing side of helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "round gauge cluster",
            "category": "prop",
            "position_hint": "upper face of helm console near steering wheel",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "throttle controls",
            "category": "prop",
            "position_hint": "starboard end of helm console within easy reach",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "navigation display",
            "category": "prop",
            "position_hint": "forward console beside round gauge cluster",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 16,
            "label": "collapse interaction position",
            "category": "prop",
            "position_hint": "central standing confrontation area just aft of helm console; never draw on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 14,
            "label": "subjective spinning circular distortion",
            "category": "prop",
            "position_hint": "subjective field around wheel, gauges, and other circular control forms; never draw on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "subjective red circle apparition",
            "category": "prop",
            "position_hint": "newly perceived among forward circular instruments; never draw on base plan",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "9c440d5a-f739-404e-a49f-d90a842ca91e",
  "resolved_model": "gpt",
  "updated_at": "2026-07-10T10:15:36.515599+00:00",
  "project_config_snapshot": {}
}