{
  "status": "completed",
  "applicable_count": 1,
  "completed_count": 1,
  "failed_count": 0,
  "schema_version": 1,
  "config_hash": "5d2891ceb277be8d",
  "data": {
    "overlays": {
      "L05B05": {
        "bg_id": "L05B05",
        "fp_id": "fp_l05_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [
          16,
          17,
          18
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open roof deck",
            "category": "area",
            "position_hint": "main exterior area surrounding the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room footprint",
            "category": "area",
            "position_hint": "compact enclosed unit along one side of the roof deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance landing",
            "category": "area",
            "position_hint": "threshold strip directly outside the rooftop-room iron door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "rooftop-room facade facing the entrance landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "small facade window",
            "category": "opening",
            "position_hint": "rooftop-room facade beside the iron entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "water tank and service pad",
            "category": "prop",
            "position_hint": "outer portion of the roof deck away from the entrance swing",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "perimeter parapet",
            "category": "area",
            "position_hint": "continuous boundary around the exposed roof-deck edges",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "fixed clothesline",
            "category": "prop",
            "position_hint": "across the shared drying portion of the roof deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "beneath or near the clothesline in the shared drying area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "forced half-open door state",
            "category": "opening",
            "position_hint": "at number 5 on the rooftop-room facade",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "advertising flyer in door gap",
            "category": "prop",
            "position_hint": "wedged at the edge of number 5 during the intrusion",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "windblown dried herb leaves",
            "category": "prop",
            "position_hint": "scattered from number 10 across the deck toward number 5",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "intruder long shadow",
            "category": "prop",
            "position_hint": "crossing number 1 from the stair side toward number 5",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "attack silhouette in window reflection",
            "category": "prop",
            "position_hint": "confined strictly to the reflective plane of number 6",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 16,
            "label": "police responders on stair",
            "category": "prop",
            "position_hint": "ascending number 4 toward number 3 during the emergency",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "lit rooftop-room window state",
            "category": "opening",
            "position_hint": "visible only through number 6 at quiet dawn",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "black cat at parapet",
            "category": "prop",
            "position_hint": "on number 8 near the facade before leaping outward",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B03": {
        "bg_id": "L05B03",
        "fp_id": "fp_l05_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [
          12,
          13,
          14,
          15,
          16,
          17,
          18
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open roof deck",
            "category": "area",
            "position_hint": "main exterior area surrounding the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room footprint",
            "category": "area",
            "position_hint": "compact enclosed unit along one side of the roof deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance landing",
            "category": "area",
            "position_hint": "threshold strip directly outside the rooftop-room iron door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "added exterior iron stair",
            "category": "area",
            "position_hint": "building edge, rising to the entrance side of the roof deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "rooftop-room facade facing the entrance landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "small facade window",
            "category": "opening",
            "position_hint": "rooftop-room facade beside the iron entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "water tank and service pad",
            "category": "prop",
            "position_hint": "outer portion of the roof deck away from the entrance swing",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "perimeter parapet",
            "category": "area",
            "position_hint": "continuous boundary around the exposed roof-deck edges",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "fixed clothesline",
            "category": "prop",
            "position_hint": "across the shared drying portion of the roof deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "beneath or near the clothesline in the shared drying area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "forced half-open door state",
            "category": "opening",
            "position_hint": "at number 5 on the rooftop-room facade",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "advertising flyer in door gap",
            "category": "prop",
            "position_hint": "wedged at the edge of number 5 during the intrusion",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "windblown dried herb leaves",
            "category": "prop",
            "position_hint": "scattered from number 10 across the deck toward number 5",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "intruder long shadow",
            "category": "prop",
            "position_hint": "crossing number 1 from the stair side toward number 5",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "attack silhouette in window reflection",
            "category": "prop",
            "position_hint": "confined strictly to the reflective plane of number 6",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "police responders on stair",
            "category": "prop",
            "position_hint": "ascending number 4 toward number 3 during the emergency",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "lit rooftop-room window state",
            "category": "opening",
            "position_hint": "visible only through number 6 at quiet dawn",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "black cat at parapet",
            "category": "prop",
            "position_hint": "on number 8 near the facade before leaping outward",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B04": {
        "bg_id": "L05B04",
        "fp_id": "fp_l05_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          8,
          11,
          16
        ],
        "ignore_numbered_elements": [
          12,
          13,
          14,
          15,
          17,
          18
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open roof deck",
            "category": "area",
            "position_hint": "main exterior area surrounding the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room footprint",
            "category": "area",
            "position_hint": "compact enclosed unit along one side of the roof deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance landing",
            "category": "area",
            "position_hint": "threshold strip directly outside the rooftop-room iron door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "added exterior iron stair",
            "category": "area",
            "position_hint": "building edge, rising to the entrance side of the roof deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "rooftop-room facade facing the entrance landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "small facade window",
            "category": "opening",
            "position_hint": "rooftop-room facade beside the iron entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "perimeter parapet",
            "category": "area",
            "position_hint": "continuous boundary around the exposed roof-deck edges",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "forced half-open door state",
            "category": "opening",
            "position_hint": "at number 5 on the rooftop-room facade",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "police responders on stair",
            "category": "prop",
            "position_hint": "ascending number 4 toward number 3 during the emergency",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "advertising flyer in door gap",
            "category": "prop",
            "position_hint": "wedged at the edge of number 5 during the intrusion",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "windblown dried herb leaves",
            "category": "prop",
            "position_hint": "scattered from number 10 across the deck toward number 5",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "intruder long shadow",
            "category": "prop",
            "position_hint": "crossing number 1 from the stair side toward number 5",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "attack silhouette in window reflection",
            "category": "prop",
            "position_hint": "confined strictly to the reflective plane of number 6",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "lit rooftop-room window state",
            "category": "opening",
            "position_hint": "visible only through number 6 at quiet dawn",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "black cat at parapet",
            "category": "prop",
            "position_hint": "on number 8 near the facade before leaping outward",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L05B01": {
        "bg_id": "L05B01",
        "fp_id": "fp_l05_rooftop_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          8,
          9,
          10,
          17,
          18
        ],
        "ignore_numbered_elements": [
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open roof deck",
            "category": "area",
            "position_hint": "main exterior area surrounding the rooftop room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "rooftop room footprint",
            "category": "area",
            "position_hint": "compact enclosed unit along one side of the roof deck",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance landing",
            "category": "area",
            "position_hint": "threshold strip directly outside the rooftop-room iron door",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "rooftop-room facade facing the entrance landing",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "small facade window",
            "category": "opening",
            "position_hint": "rooftop-room facade beside the iron entrance door",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "water tank and service pad",
            "category": "prop",
            "position_hint": "outer portion of the roof deck away from the entrance swing",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "perimeter parapet",
            "category": "area",
            "position_hint": "continuous boundary around the exposed roof-deck edges",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "fixed clothesline",
            "category": "prop",
            "position_hint": "across the shared drying portion of the roof deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "low drying platform",
            "category": "furniture",
            "position_hint": "beneath or near the clothesline in the shared drying area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 17,
            "label": "lit rooftop-room window state",
            "category": "opening",
            "position_hint": "visible only through number 6 at quiet dawn",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "black cat at parapet",
            "category": "prop",
            "position_hint": "on number 8 near the facade before leaping outward",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "forced half-open door state",
            "category": "opening",
            "position_hint": "at number 5 on the rooftop-room facade",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "advertising flyer in door gap",
            "category": "prop",
            "position_hint": "wedged at the edge of number 5 during the intrusion",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "windblown dried herb leaves",
            "category": "prop",
            "position_hint": "scattered from number 10 across the deck toward number 5",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "intruder long shadow",
            "category": "prop",
            "position_hint": "crossing number 1 from the stair side toward number 5",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "attack silhouette in window reflection",
            "category": "prop",
            "position_hint": "confined strictly to the reflective plane of number 6",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "police responders on stair",
            "category": "prop",
            "position_hint": "ascending number 4 toward number 3 during the emergency",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          8
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 8]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B02": {
        "bg_id": "L06B02",
        "fp_id": "fp_l06_rooftop_room_interior",
        "use_numbered_elements": [
          1,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          14,
          15,
          16,
          17,
          24,
          25
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared living and dining area",
            "category": "area",
            "position_hint": "central and southern portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "south side between the exterior landing and shared room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "kitchen service strip",
            "category": "area",
            "position_hint": "along the west wall of the shared room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "exterior rooftop landing",
            "category": "area",
            "position_hint": "outside the south entrance wall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "south exterior wall at the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "mother's bedroom door",
            "category": "opening",
            "position_hint": "northwest side of the shared room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "daughter's bedroom door",
            "category": "opening",
            "position_hint": "northeast side of the shared room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "north side of the shared room beside the bedroom doors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "small living-room window",
            "category": "opening",
            "position_hint": "exterior wall of the shared living area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "kitchen sink and faucet",
            "category": "furniture",
            "position_hint": "within the west-wall kitchen service strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "stovetop",
            "category": "furniture",
            "position_hint": "beside the kitchen sink in the service strip",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "television",
            "category": "furniture",
            "position_hint": "against the shared-room wall facing the dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "dining table and chairs",
            "category": "furniture",
            "position_hint": "center of the shared living and dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "framed family photograph",
            "category": "prop",
            "position_hint": "on top of the dining table in the shared area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 25,
            "label": "exterior steel access stair",
            "category": "area",
            "position_hint": "attached outside the building wall and terminating at number 7",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "on the floor beside the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "bloody tracks",
            "category": "prop",
            "position_hint": "crossing the daughter's bedroom floor toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter's bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "red wrist mark",
            "category": "prop",
            "position_hint": "on the wrist of the corpse behind the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "red wall circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "two tea cups",
            "category": "prop",
            "position_hint": "on the dining table, with one cup overturned",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the clean daughter's bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "mirror-only red circle",
            "category": "prop",
            "position_hint": "visible only within the bathroom mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "melting face in family photo",
            "category": "prop",
            "position_hint": "perceptual distortion confined to the photograph surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "ransacked household goods",
            "category": "prop",
            "position_hint": "scattered through the shared room and storage edges",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "crossing the shared room from the entry side",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the ransacked state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "crumpled old photograph",
            "category": "prop",
            "position_hint": "held in the corpse's hand during the murder scene",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "bloodied old photograph pinned to wall",
            "category": "prop",
            "position_hint": "pinned at the center of the red wall circle above the daughter's bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          5,
          6,
          7,
          25
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 5, 6, 7, 25]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B05": {
        "bg_id": "L06B05",
        "fp_id": "fp_l06_rooftop_room_interior",
        "use_numbered_elements": [
          3,
          10,
          13,
          19,
          20,
          26,
          27,
          28,
          29,
          30,
          31,
          39
        ],
        "ignore_numbered_elements": [
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 3,
            "label": "daughter's bedroom",
            "category": "area",
            "position_hint": "northeast private room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "daughter's bedroom door",
            "category": "opening",
            "position_hint": "northeast side of the shared room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "daughter's bedroom window",
            "category": "opening",
            "position_hint": "outer wall at the far side of the daughter's bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "daughter's bed",
            "category": "furniture",
            "position_hint": "along one wall of the daughter's bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "daughter's window curtain",
            "category": "furniture",
            "position_hint": "inside the daughter's bedroom at number 13",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 26,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "on the floor beside the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "bloody tracks",
            "category": "prop",
            "position_hint": "crossing the daughter's bedroom floor toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter's bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "red wrist mark",
            "category": "prop",
            "position_hint": "on the wrist of the corpse behind the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "red wall circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "two tea cups",
            "category": "prop",
            "position_hint": "on the dining table, with one cup overturned",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "crumpled old photograph",
            "category": "prop",
            "position_hint": "held in the corpse's hand during the murder scene",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the clean daughter's bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "mirror-only red circle",
            "category": "prop",
            "position_hint": "visible only within the bathroom mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "melting face in family photo",
            "category": "prop",
            "position_hint": "perceptual distortion confined to the photograph surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "ransacked household goods",
            "category": "prop",
            "position_hint": "scattered through the shared room and storage edges",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "crossing the shared room from the entry side",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the ransacked state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "bloodied old photograph pinned to wall",
            "category": "prop",
            "position_hint": "pinned at the center of the red wall circle above the daughter's bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3
        ],
        "dominant_target_unit_marker_number": 3,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L06B06": {
        "bg_id": "L06B06",
        "fp_id": "fp_l06_rooftop_room_interior",
        "use_numbered_elements": [
          1,
          3,
          10,
          13,
          17,
          19,
          20,
          32
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          30,
          31,
          33,
          34,
          35,
          36,
          37,
          38,
          39,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared living and dining area",
            "category": "area",
            "position_hint": "central and southern portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "daughter's bedroom",
            "category": "area",
            "position_hint": "northeast private room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "daughter's bedroom door",
            "category": "opening",
            "position_hint": "northeast side of the shared room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "daughter's bedroom window",
            "category": "opening",
            "position_hint": "outer wall at the far side of the daughter's bedroom",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "dining table and chairs",
            "category": "furniture",
            "position_hint": "center of the shared living and dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "daughter's bed",
            "category": "furniture",
            "position_hint": "along one wall of the daughter's bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 20,
            "label": "daughter's window curtain",
            "category": "furniture",
            "position_hint": "inside the daughter's bedroom at number 13",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the clean daughter's bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "on the floor beside the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "bloody tracks",
            "category": "prop",
            "position_hint": "crossing the daughter's bedroom floor toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter's bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "red wrist mark",
            "category": "prop",
            "position_hint": "on the wrist of the corpse behind the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "red wall circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "two tea cups",
            "category": "prop",
            "position_hint": "on the dining table, with one cup overturned",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "mirror-only red circle",
            "category": "prop",
            "position_hint": "visible only within the bathroom mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "melting face in family photo",
            "category": "prop",
            "position_hint": "perceptual distortion confined to the photograph surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "ransacked household goods",
            "category": "prop",
            "position_hint": "scattered through the shared room and storage edges",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "crossing the shared room from the entry side",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the ransacked state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "crumpled old photograph",
            "category": "prop",
            "position_hint": "held in the corpse's hand during the murder scene",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "bloodied old photograph pinned to wall",
            "category": "prop",
            "position_hint": "pinned at the center of the red wall circle above the daughter's bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B01": {
        "bg_id": "L06B01",
        "fp_id": "fp_l06_rooftop_room_interior",
        "use_numbered_elements": [
          1,
          4,
          11,
          17,
          21,
          22,
          23,
          24,
          33,
          34
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          35,
          36,
          37,
          38,
          39,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared living and dining area",
            "category": "area",
            "position_hint": "central and southern portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "bathroom",
            "category": "area",
            "position_hint": "compact service room beside the bedrooms",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "bathroom door",
            "category": "opening",
            "position_hint": "north side of the shared room beside the bedroom doors",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "dining table and chairs",
            "category": "furniture",
            "position_hint": "center of the shared living and dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "bathroom sink",
            "category": "furniture",
            "position_hint": "inside the bathroom beside the entrance",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "bathroom mirror",
            "category": "furniture",
            "position_hint": "wall-mounted directly above number 21",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "toilet",
            "category": "furniture",
            "position_hint": "far end of the compact bathroom",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 24,
            "label": "framed family photograph",
            "category": "prop",
            "position_hint": "on top of the dining table in the shared area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 33,
            "label": "mirror-only red circle",
            "category": "prop",
            "position_hint": "visible only within the bathroom mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "melting face in family photo",
            "category": "prop",
            "position_hint": "perceptual distortion confined to the photograph surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "on the floor beside the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "bloody tracks",
            "category": "prop",
            "position_hint": "crossing the daughter's bedroom floor toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter's bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "red wrist mark",
            "category": "prop",
            "position_hint": "on the wrist of the corpse behind the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "red wall circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "two tea cups",
            "category": "prop",
            "position_hint": "on the dining table, with one cup overturned",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the clean daughter's bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "ransacked household goods",
            "category": "prop",
            "position_hint": "scattered through the shared room and storage edges",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "crossing the shared room from the entry side",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the ransacked state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "crumpled old photograph",
            "category": "prop",
            "position_hint": "held in the corpse's hand during the murder scene",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "bloodied old photograph pinned to wall",
            "category": "prop",
            "position_hint": "pinned at the center of the red wall circle above the daughter's bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B04": {
        "bg_id": "L06B04",
        "fp_id": "fp_l06_rooftop_room_interior",
        "use_numbered_elements": [
          1,
          5,
          8,
          10,
          12,
          17,
          35,
          36,
          37,
          38
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          30,
          31,
          32,
          33,
          34,
          39,
          40
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared living and dining area",
            "category": "area",
            "position_hint": "central and southern portion of the dwelling",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "south side between the exterior landing and shared room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "iron entrance door",
            "category": "opening",
            "position_hint": "south exterior wall at the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "daughter's bedroom door",
            "category": "opening",
            "position_hint": "northeast side of the shared room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "small living-room window",
            "category": "opening",
            "position_hint": "exterior wall of the shared living area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "dining table and chairs",
            "category": "furniture",
            "position_hint": "center of the shared living and dining area",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 35,
            "label": "ransacked household goods",
            "category": "prop",
            "position_hint": "scattered through the shared room and storage edges",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "crossing the shared room from the entry side",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the ransacked state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "on the floor beside the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "bloody tracks",
            "category": "prop",
            "position_hint": "crossing the daughter's bedroom floor toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter's bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "red wrist mark",
            "category": "prop",
            "position_hint": "on the wrist of the corpse behind the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 30,
            "label": "red wall circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "two tea cups",
            "category": "prop",
            "position_hint": "on the dining table, with one cup overturned",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the clean daughter's bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "mirror-only red circle",
            "category": "prop",
            "position_hint": "visible only within the bathroom mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "melting face in family photo",
            "category": "prop",
            "position_hint": "perceptual distortion confined to the photograph surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "crumpled old photograph",
            "category": "prop",
            "position_hint": "held in the corpse's hand during the murder scene",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "bloodied old photograph pinned to wall",
            "category": "prop",
            "position_hint": "pinned at the center of the red wall circle above the daughter's bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          5
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 5]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L06B03": {
        "bg_id": "L06B03",
        "fp_id": "fp_l06_rooftop_room_interior",
        "use_numbered_elements": [
          3,
          10,
          19,
          30,
          40
        ],
        "ignore_numbered_elements": [
          26,
          27,
          28,
          29,
          31,
          32,
          33,
          34,
          35,
          36,
          37,
          38,
          39
        ],
        "base_markers_to_reference": [
          {
            "number": 3,
            "label": "daughter's bedroom",
            "category": "area",
            "position_hint": "northeast private room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "daughter's bedroom door",
            "category": "opening",
            "position_hint": "northeast side of the shared room",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "daughter's bed",
            "category": "furniture",
            "position_hint": "along one wall of the daughter's bedroom",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 30,
            "label": "red wall circle above bed",
            "category": "prop",
            "position_hint": "on the wall above the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 40,
            "label": "bloodied old photograph pinned to wall",
            "category": "prop",
            "position_hint": "pinned at the center of the red wall circle above the daughter's bed",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 26,
            "label": "pooled blood",
            "category": "prop",
            "position_hint": "on the floor beside the daughter's bed",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 27,
            "label": "bloody tracks",
            "category": "prop",
            "position_hint": "crossing the daughter's bedroom floor toward the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 28,
            "label": "corpse behind curtain",
            "category": "prop",
            "position_hint": "seated behind the curtain in the daughter's bedroom",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 29,
            "label": "red wrist mark",
            "category": "prop",
            "position_hint": "on the wrist of the corpse behind the curtain",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 31,
            "label": "two tea cups",
            "category": "prop",
            "position_hint": "on the dining table, with one cup overturned",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 32,
            "label": "shifted backpack and doll",
            "category": "prop",
            "position_hint": "inside the clean daughter's bedroom in subtly altered positions",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 33,
            "label": "mirror-only red circle",
            "category": "prop",
            "position_hint": "visible only within the bathroom mirror reflection",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 34,
            "label": "melting face in family photo",
            "category": "prop",
            "position_hint": "perceptual distortion confined to the photograph surface",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 35,
            "label": "ransacked household goods",
            "category": "prop",
            "position_hint": "scattered through the shared room and storage edges",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 36,
            "label": "intruder footprints",
            "category": "prop",
            "position_hint": "crossing the shared room from the entry side",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 37,
            "label": "open living window state",
            "category": "opening",
            "position_hint": "at the small living-room window",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 38,
            "label": "overturned dining chairs",
            "category": "furniture",
            "position_hint": "around the dining table in the ransacked state",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 39,
            "label": "crumpled old photograph",
            "category": "prop",
            "position_hint": "held in the corpse's hand during the murder scene",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          3
        ],
        "dominant_target_unit_marker_number": 3,
        "clean_background_expected": false,
        "diagnostics": []
      },
      "L08B01": {
        "bg_id": "L08B01",
        "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,
          22,
          23
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "kennel hall",
            "category": "area",
            "position_hint": "center of plan, extending between both kennel banks",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "treatment zone",
            "category": "area",
            "position_hint": "northwest side of central hall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "grooming zone",
            "category": "area",
            "position_hint": "north-central side of work hall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "washing zone",
            "category": "area",
            "position_hint": "northeast corner of plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "south center between main door and kennel hall",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "utility storage room",
            "category": "area",
            "position_hint": "north side beside washing zone",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "west kennel bank",
            "category": "furniture",
            "position_hint": "along west wall with gated fronts facing central aisle",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "east kennel bank",
            "category": "furniture",
            "position_hint": "along east wall with gated fronts facing central aisle",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "examination table",
            "category": "furniture",
            "position_hint": "center of treatment zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "clinical sink",
            "category": "furniture",
            "position_hint": "against west or north wall of treatment zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "medicine cabinet",
            "category": "furniture",
            "position_hint": "wall-mounted at far side of treatment zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "grooming table",
            "category": "furniture",
            "position_hint": "center of grooming zone with aisle clearance around it",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "wash tub",
            "category": "furniture",
            "position_hint": "against exterior wall in washing zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "floor drain",
            "category": "prop",
            "position_hint": "floor of washing zone near wash tub",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "utility sink",
            "category": "furniture",
            "position_hint": "washing zone wall beside wash tub",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "main entrance door",
            "category": "opening",
            "position_hint": "south exterior wall at entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "rear service door",
            "category": "opening",
            "position_hint": "north or northeast exterior wall beside utility storage",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 18,
            "label": "high window band",
            "category": "opening",
            "position_hint": "exterior wall above kennel or work-zone level",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 19,
            "label": "built-in supply cabinets",
            "category": "furniture",
            "position_hint": "wall of grooming zone near grooming table",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 20,
            "label": "occupied kennel dogs",
            "category": "prop",
            "position_hint": "distributed inside west and east kennel banks",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 21,
            "label": "vaccination dog and syringe setup",
            "category": "prop",
            "position_hint": "at examination table in treatment zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 22,
            "label": "active grooming setup",
            "category": "prop",
            "position_hint": "around grooming table in grooming zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 23,
            "label": "active dog washing setup",
            "category": "prop",
            "position_hint": "at wash tub in washing zone",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4,
          5,
          6
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3, 4, 5, 6]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L11B01": {
        "bg_id": "L11B01",
        "fp_id": "fp_l11_store_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          12
        ],
        "ignore_numbered_elements": [
          13
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared sales floor",
            "category": "area",
            "position_hint": "large central and northern portion of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance vestibule",
            "category": "area",
            "position_hint": "center of the south edge between exterior doors and checkout circulation",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "automatic sliding entrance",
            "category": "opening",
            "position_hint": "south facade at the outer edge of the entrance vestibule",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "checkout service zone",
            "category": "area",
            "position_hint": "southwest side of the sales floor beside the entrance vestibule",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "checkout counter bank",
            "category": "furniture",
            "position_hint": "inside the checkout service zone, aligned toward the south exit",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "gondola shelving bank",
            "category": "furniture",
            "position_hint": "parallel rows across the center of the shared sales floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "promotional display islands",
            "category": "furniture",
            "position_hint": "open cross-aisle near the southern ends of the central shelving rows",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "refrigerated wall cases",
            "category": "furniture",
            "position_hint": "continuous fixture run along the north and east perimeter walls",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "staff workstation",
            "category": "furniture",
            "position_hint": "west-central sales floor near the shelving and service circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "stock service door",
            "category": "opening",
            "position_hint": "north wall behind the staff-side circulation path",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 12,
            "label": "stocking cartons and handcart",
            "category": "prop",
            "position_hint": "temporarily beside the central gondola shelving during dusk operations",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 13,
            "label": "unoccupied employee post",
            "category": "prop",
            "position_hint": "at the regular staff workstation during the quiet early-morning state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L11B02": {
        "bg_id": "L11B02",
        "fp_id": "fp_l11_store_interior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          11
        ],
        "ignore_numbered_elements": [
          12,
          13
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared sales floor",
            "category": "area",
            "position_hint": "large central and northern portion of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "entrance vestibule",
            "category": "area",
            "position_hint": "center of the south edge between exterior doors and checkout circulation",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "automatic sliding entrance",
            "category": "opening",
            "position_hint": "south facade at the outer edge of the entrance vestibule",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "checkout service zone",
            "category": "area",
            "position_hint": "southwest side of the sales floor beside the entrance vestibule",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "checkout counter bank",
            "category": "furniture",
            "position_hint": "inside the checkout service zone, aligned toward the south exit",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "storefront glazing",
            "category": "opening",
            "position_hint": "south facade flanking the automatic entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "stocking cartons and handcart",
            "category": "prop",
            "position_hint": "temporarily beside the central gondola shelving during dusk operations",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "unoccupied employee post",
            "category": "prop",
            "position_hint": "at the regular staff workstation during the quiet early-morning state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L11B04": {
        "bg_id": "L11B04",
        "fp_id": "fp_l11_store_interior",
        "use_numbered_elements": [
          1,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          13
        ],
        "ignore_numbered_elements": [
          12
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "shared sales floor",
            "category": "area",
            "position_hint": "large central and northern portion of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "checkout service zone",
            "category": "area",
            "position_hint": "southwest side of the sales floor beside the entrance vestibule",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "checkout counter bank",
            "category": "furniture",
            "position_hint": "inside the checkout service zone, aligned toward the south exit",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "gondola shelving bank",
            "category": "furniture",
            "position_hint": "parallel rows across the center of the shared sales floor",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "promotional display islands",
            "category": "furniture",
            "position_hint": "open cross-aisle near the southern ends of the central shelving rows",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "refrigerated wall cases",
            "category": "furniture",
            "position_hint": "continuous fixture run along the north and east perimeter walls",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "staff workstation",
            "category": "furniture",
            "position_hint": "west-central sales floor near the shelving and service circulation",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "stock service door",
            "category": "opening",
            "position_hint": "north wall behind the staff-side circulation path",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 13,
            "label": "unoccupied employee post",
            "category": "prop",
            "position_hint": "at the regular staff workstation during the quiet early-morning state",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 12,
            "label": "stocking cartons and handcart",
            "category": "prop",
            "position_hint": "temporarily beside the central gondola shelving during dusk operations",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          4
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 4]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L17B01": {
        "bg_id": "L17B01",
        "fp_id": "fp_l17_cctv_control_room",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          8,
          9,
          11,
          12
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "Console Zone",
            "category": "area",
            "position_hint": "north/front portion of the control room",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "Rear Viewing Zone",
            "category": "area",
            "position_hint": "central and southwest portion behind the operator seating",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "Threshold Zone",
            "category": "area",
            "position_hint": "southeast corner immediately inside the entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "Entrance door",
            "category": "opening",
            "position_hint": "southeast wall, opening inward toward the threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "CCTV control console",
            "category": "furniture",
            "position_hint": "centered against the north wall within the Console Zone",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "Replay monitor bank",
            "category": "prop",
            "position_hint": "mounted along the north wall directly above or behind the control console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "Operator chairs",
            "category": "furniture",
            "position_hint": "in front of the control console, facing north toward the monitor bank",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "Rear viewing chairs",
            "category": "furniture",
            "position_hint": "behind the operator chairs in the Rear Viewing Zone",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "Anomalously dark replay area",
            "category": "prop",
            "position_hint": "confined to one or more screens within the replay monitor bank",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "Indistinct human silhouette",
            "category": "prop",
            "position_hint": "visible only inside the anomalously dark CCTV replay image on the monitor bank",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 3]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L15B02": {
        "bg_id": "L15B02",
        "fp_id": "fp_police_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          7,
          8,
          9,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [
          14,
          15,
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open duty area",
            "category": "area",
            "position_hint": "main central and northern portion of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "central circulation aisle",
            "category": "area",
            "position_hint": "running from the entrance through the middle of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "inside the main office entry at the south side",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "main office entry door",
            "category": "opening",
            "position_hint": "south wall opening into the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "exterior window bank",
            "category": "opening",
            "position_hint": "outer wall beside the open duty area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "primary duty desk",
            "category": "furniture",
            "position_hint": "near the central aisle with a clear view of the entrance",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "second investigator desk",
            "category": "furniture",
            "position_hint": "adjacent to the primary duty desk across the central aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "team desk cluster",
            "category": "furniture",
            "position_hint": "deeper in the open duty area near the internal corridor doorway",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "primary workstation monitors",
            "category": "prop",
            "position_hint": "fixed working position on the primary duty desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "team workstation monitors",
            "category": "prop",
            "position_hint": "fixed working positions on the team desk 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": "murder-case photographs",
            "category": "prop",
            "position_hint": "temporarily scattered across the second investigator desk during the daytime case response",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "missing-person tracking forms",
            "category": "prop",
            "position_hint": "temporarily handled or placed near the primary duty desk during the daytime sequence",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "GPS tracking result display",
            "category": "prop",
            "position_hint": "temporarily visible within the primary workstation monitor during the daytime tracking result",
            "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)"
        ]
      },
      "L15B01": {
        "bg_id": "L15B01",
        "fp_id": "fp_police_office",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open duty area",
            "category": "area",
            "position_hint": "main central and northern portion of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "central circulation aisle",
            "category": "area",
            "position_hint": "running from the entrance through the middle of the office",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "entrance threshold",
            "category": "area",
            "position_hint": "inside the main office entry at the south side",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "coffee and utility niche",
            "category": "area",
            "position_hint": "side wall near the rear of the duty area",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "main office entry door",
            "category": "opening",
            "position_hint": "south wall opening into the entrance threshold",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "internal corridor doorway",
            "category": "opening",
            "position_hint": "side or rear wall leading toward meeting rooms and station circulation",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "exterior window bank",
            "category": "opening",
            "position_hint": "outer wall beside the open duty area",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "primary duty desk",
            "category": "furniture",
            "position_hint": "near the central aisle with a clear view of the entrance",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "second investigator desk",
            "category": "furniture",
            "position_hint": "adjacent to the primary duty desk across the central aisle",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "team desk cluster",
            "category": "furniture",
            "position_hint": "deeper in the open duty area near the internal corridor doorway",
            "base_layer_decision": "base_persistent_furniture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "primary workstation monitors",
            "category": "prop",
            "position_hint": "fixed working position on the primary duty desk",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "team workstation monitors",
            "category": "prop",
            "position_hint": "fixed working positions on the team desk cluster",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "coffee counter and sink",
            "category": "prop",
            "position_hint": "inside the coffee and utility niche against the side wall",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 14,
            "label": "murder-case photographs",
            "category": "prop",
            "position_hint": "temporarily scattered across the second investigator desk during the daytime case response",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "missing-person tracking forms",
            "category": "prop",
            "position_hint": "temporarily handled or placed near the primary duty desk during the daytime sequence",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 16,
            "label": "GPS tracking result display",
            "category": "prop",
            "position_hint": "temporarily visible within the primary workstation monitor during the daytime tracking result",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [],
        "target_unit_marker_numbers": [
          1,
          2,
          3,
          4
        ],
        "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)"
        ]
      },
      "L16B01": {
        "bg_id": "L16B01",
        "fp_id": "fp_station_parking_exterior",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "station building footprint",
            "category": "area",
            "position_hint": "north side of the plan, facing the road",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "public entrance",
            "category": "opening",
            "position_hint": "center of the south-facing station frontage",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "west frontage window",
            "category": "opening",
            "position_hint": "south wall of the station, west of the entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "east frontage window",
            "category": "opening",
            "position_hint": "south wall of the station, east of the entrance",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "front forecourt",
            "category": "area",
            "position_hint": "directly south of the station entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "bicycle parking bay",
            "category": "area",
            "position_hint": "at one side of the forecourt 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",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "frontage driveway",
            "category": "area",
            "position_hint": "linking the forecourt edge to the adjoining road",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "pedestrian sidewalk",
            "category": "area",
            "position_hint": "between the station frontage and the road",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "adjoining road",
            "category": "area",
            "position_hint": "east-west route along the south edge of the plan",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "departing bicycle",
            "category": "prop",
            "position_hint": "moving from the bicycle parking bay through the frontage toward the road",
            "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,
          5,
          6,
          8,
          9,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 5, 6, 8, 9, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L22B02": {
        "bg_id": "L22B02",
        "fp_id": "fp_fishing_vessel_deck",
        "use_numbered_elements": [
          1,
          3,
          5,
          6,
          7,
          8,
          10,
          11,
          12
        ],
        "ignore_numbered_elements": [],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open working deck",
            "category": "area",
            "position_hint": "forward and middle portion of the vessel inside the railings",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse doorway",
            "category": "opening",
            "position_hint": "center of the wheelhouse forward bulkhead facing the open deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "port safety railing",
            "category": "prop",
            "position_hint": "along the port edge of the open working deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "starboard safety railing",
            "category": "prop",
            "position_hint": "along the starboard edge of the open working deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 7,
            "label": "bow safety railing",
            "category": "prop",
            "position_hint": "curving around the north bow edge",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "low deck locker seat",
            "category": "furniture",
            "position_hint": "on the open deck near the centerline, forward of the wheelhouse while leaving circulation clear",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "exterior sea margin",
            "category": "area",
            "position_hint": "pale gray area surrounding the vessel hull",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 11,
            "label": "old photograph",
            "category": "prop",
            "position_hint": "temporarily held or examined near the low deck locker seat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "map",
            "category": "prop",
            "position_hint": "temporarily handled on the open deck near the seated examination position",
            "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,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": false,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L22B01": {
        "bg_id": "L22B01",
        "fp_id": "fp_fishing_vessel_deck",
        "use_numbered_elements": [
          1,
          2,
          3,
          4,
          5,
          6,
          8,
          9,
          10
        ],
        "ignore_numbered_elements": [
          11,
          12
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "open working deck",
            "category": "area",
            "position_hint": "forward and middle portion of the vessel inside the railings",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "wheelhouse",
            "category": "area",
            "position_hint": "enclosed aft portion of the vessel",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "wheelhouse doorway",
            "category": "opening",
            "position_hint": "center of the wheelhouse forward bulkhead facing the open deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 4,
            "label": "helm console",
            "category": "furniture",
            "position_hint": "inside the wheelhouse on the starboard side near the forward windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 5,
            "label": "port safety railing",
            "category": "prop",
            "position_hint": "along the port edge of the open working deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 6,
            "label": "starboard safety railing",
            "category": "prop",
            "position_hint": "along the starboard edge of the open working deck",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "low deck locker seat",
            "category": "furniture",
            "position_hint": "on the open deck near the centerline, forward of the wheelhouse while leaving circulation clear",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "forward windshield bank",
            "category": "opening",
            "position_hint": "forward wall of the wheelhouse above the helm-facing side",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "exterior sea margin",
            "category": "area",
            "position_hint": "pale gray area surrounding the vessel hull",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 11,
            "label": "old photograph",
            "category": "prop",
            "position_hint": "temporarily held or examined near the low deck locker seat",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "map",
            "category": "prop",
            "position_hint": "temporarily handled on the open deck near the seated examination position",
            "base_layer_decision": "state_overlay_transient_object",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "target_unit_marker_numbers": [
          1,
          2,
          10
        ],
        "dominant_target_unit_marker_number": null,
        "clean_background_expected": true,
        "diagnostics": [
          "multiple base_structural_unit markers in use_numbered_elements ([1, 2, 10]); dominant_target_unit_marker_number left empty (W19B-1 lock — no lexical disambiguation)"
        ]
      },
      "L23B01": {
        "bg_id": "L23B01",
        "fp_id": "fp_fishing_vessel_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15
        ],
        "ignore_numbered_elements": [
          16,
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "helm service zone",
            "category": "area",
            "position_hint": "forward third of the wheelhouse around the helm console",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "central standing zone",
            "category": "area",
            "position_hint": "center of the wheelhouse between the helm and aft entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "aft entrance threshold",
            "category": "area",
            "position_hint": "narrow interior strip immediately forward of the aft 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 the forward wall above the helm sightline",
            "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 the starboard wall beside the helm",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "aft access door",
            "category": "opening",
            "position_hint": "aft wall connecting the threshold to the exterior deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "helm console",
            "category": "prop",
            "position_hint": "forward starboard side beneath the windshield bank",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "steering wheel",
            "category": "prop",
            "position_hint": "fixed to the operator-facing side of the helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "throttle control",
            "category": "prop",
            "position_hint": "starboard edge of the helm console within standing reach",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "circular instrument gauges",
            "category": "prop",
            "position_hint": "grouped across the upper face of the helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "GPS chart display",
            "category": "prop",
            "position_hint": "forward console beside the circular instrument gauges",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "marine radio",
            "category": "prop",
            "position_hint": "fixed near the helm on the starboard-forward bulkhead",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "magnetic compass",
            "category": "prop",
            "position_hint": "centered high on the forward console near the windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [],
        "ignored_state_overlay_markers": [
          {
            "number": 16,
            "label": "ominous red circle apparition",
            "category": "prop",
            "position_hint": "subjectively visible against the forward helm fixtures behind the standing operator",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 17,
            "label": "rotating circular-fixture distortion",
            "category": "prop",
            "position_hint": "subjective perceptual motion affecting the gauge cluster and other circular helm fixtures",
            "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)"
        ]
      },
      "L23B03": {
        "bg_id": "L23B03",
        "fp_id": "fp_fishing_vessel_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          5,
          6,
          7,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16
        ],
        "ignore_numbered_elements": [
          17
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "helm service zone",
            "category": "area",
            "position_hint": "forward third of the wheelhouse around the helm console",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "central standing zone",
            "category": "area",
            "position_hint": "center of the wheelhouse between the helm and aft entrance",
            "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 the forward wall above the helm sightline",
            "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 the port wall",
            "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 the starboard wall beside the helm",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "helm console",
            "category": "prop",
            "position_hint": "forward starboard side beneath the windshield bank",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "steering wheel",
            "category": "prop",
            "position_hint": "fixed to the operator-facing side of the helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "throttle control",
            "category": "prop",
            "position_hint": "starboard edge of the helm console within standing reach",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "circular instrument gauges",
            "category": "prop",
            "position_hint": "grouped across the upper face of the helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "GPS chart display",
            "category": "prop",
            "position_hint": "forward console beside the circular instrument gauges",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "marine radio",
            "category": "prop",
            "position_hint": "fixed near the helm on the starboard-forward bulkhead",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "magnetic compass",
            "category": "prop",
            "position_hint": "centered high on the forward console near the windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 16,
            "label": "ominous red circle apparition",
            "category": "prop",
            "position_hint": "subjectively visible against the forward helm fixtures behind the standing operator",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 17,
            "label": "rotating circular-fixture distortion",
            "category": "prop",
            "position_hint": "subjective perceptual motion affecting the gauge cluster and other circular helm fixtures",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "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)"
        ]
      },
      "L23B02": {
        "bg_id": "L23B02",
        "fp_id": "fp_fishing_vessel_wheelhouse",
        "use_numbered_elements": [
          1,
          2,
          3,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          17
        ],
        "ignore_numbered_elements": [
          16
        ],
        "base_markers_to_reference": [
          {
            "number": 1,
            "label": "helm service zone",
            "category": "area",
            "position_hint": "forward third of the wheelhouse around the helm console",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 2,
            "label": "central standing zone",
            "category": "area",
            "position_hint": "center of the wheelhouse between the helm and aft entrance",
            "base_layer_decision": "base_structural_unit",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 3,
            "label": "aft entrance threshold",
            "category": "area",
            "position_hint": "narrow interior strip immediately forward of the aft 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 the forward wall above the helm sightline",
            "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 the port wall",
            "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 the starboard wall beside the helm",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 8,
            "label": "aft access door",
            "category": "opening",
            "position_hint": "aft wall connecting the threshold to the exterior deck",
            "base_layer_decision": "base_opening",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 9,
            "label": "helm console",
            "category": "prop",
            "position_hint": "forward starboard side beneath the windshield bank",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 10,
            "label": "steering wheel",
            "category": "prop",
            "position_hint": "fixed to the operator-facing side of the helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 11,
            "label": "throttle control",
            "category": "prop",
            "position_hint": "starboard edge of the helm console within standing reach",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 12,
            "label": "circular instrument gauges",
            "category": "prop",
            "position_hint": "grouped across the upper face of the helm console",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 13,
            "label": "GPS chart display",
            "category": "prop",
            "position_hint": "forward console beside the circular instrument gauges",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 14,
            "label": "marine radio",
            "category": "prop",
            "position_hint": "fixed near the helm on the starboard-forward bulkhead",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          },
          {
            "number": 15,
            "label": "magnetic compass",
            "category": "prop",
            "position_hint": "centered high on the forward console near the windshield",
            "base_layer_decision": "base_persistent_fixture",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "transient_markers_to_describe": [
          {
            "number": 17,
            "label": "rotating circular-fixture distortion",
            "category": "prop",
            "position_hint": "subjective perceptual motion affecting the gauge cluster and other circular helm fixtures",
            "base_layer_decision": "state_overlay_plot_cue",
            "render_role": "not_applicable",
            "top_down_legibility": "not_applicable"
          }
        ],
        "ignored_state_overlay_markers": [
          {
            "number": 16,
            "label": "ominous red circle apparition",
            "category": "prop",
            "position_hint": "subjectively visible against the forward helm fixtures behind the standing operator",
            "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)"
        ]
      }
    }
  },
  "step_id": "floor_plan_overlay_payload",
  "run_id": "e113f9c7-747b-4c77-a286-2a81803a3e27",
  "resolved_model": "gpt",
  "updated_at": "2026-07-10T03:45:23.657322+00:00",
  "project_config_snapshot": {}
}