{
  "scene_id": "tw_operating_room_02_s2",
  "seed": 20260872,
  "room_name": "operating_room",
  "notes": "TwinWorld Phase-2 dynamic state from tw_operating_room_02_s1. Simulated only.",
  "entities": [
    {
      "entity_id": "zone_main",
      "entity_type": "zone",
      "pose_xyz": [
        0.0,
        0.0,
        1.5
      ],
      "size_xyz": [
        6.0,
        5.0,
        3.0
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/zone",
      "movable": false,
      "mass_kg": 1.0,
      "metadata": {}
    },
    {
      "entity_id": "floor",
      "entity_type": "floor",
      "pose_xyz": [
        0.0,
        0.0,
        0.0
      ],
      "size_xyz": [
        6.0,
        5.0,
        0.05
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/floor",
      "movable": false,
      "mass_kg": 1.0,
      "metadata": {}
    },
    {
      "entity_id": "wall_n",
      "entity_type": "wall",
      "pose_xyz": [
        0.0,
        2.5,
        1.5
      ],
      "size_xyz": [
        6.0,
        0.1,
        3.0
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/wall",
      "movable": false,
      "mass_kg": 1.0,
      "metadata": {}
    },
    {
      "entity_id": "wall_s",
      "entity_type": "wall",
      "pose_xyz": [
        0.0,
        -2.5,
        1.5
      ],
      "size_xyz": [
        6.0,
        0.1,
        3.0
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/wall",
      "movable": false,
      "mass_kg": 1.0,
      "metadata": {}
    },
    {
      "entity_id": "wall_w",
      "entity_type": "wall",
      "pose_xyz": [
        -3.0,
        0.0,
        1.5
      ],
      "size_xyz": [
        0.1,
        5.0,
        3.0
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/wall",
      "movable": false,
      "mass_kg": 1.0,
      "metadata": {}
    },
    {
      "entity_id": "wall_e",
      "entity_type": "wall",
      "pose_xyz": [
        3.0,
        0.0,
        1.5
      ],
      "size_xyz": [
        0.1,
        5.0,
        3.0
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/wall",
      "movable": false,
      "mass_kg": 1.0,
      "metadata": {}
    },
    {
      "entity_id": "ceiling",
      "entity_type": "ceiling",
      "pose_xyz": [
        0.0,
        0.0,
        3.0
      ],
      "size_xyz": [
        6.0,
        5.0,
        0.05
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/ceiling",
      "movable": false,
      "mass_kg": 1.0,
      "metadata": {}
    },
    {
      "entity_id": "bed",
      "entity_type": "therapy_bed",
      "pose_xyz": [
        0.04999999999999999,
        0.13999999999999999,
        0.45
      ],
      "size_xyz": [
        2.0,
        0.9,
        0.5
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/therapy_bed",
      "movable": true,
      "mass_kg": 80.0,
      "metadata": {
        "display_label": "hospital_bed"
      }
    },
    {
      "entity_id": "iv_pole",
      "entity_type": "iv_pole",
      "pose_xyz": [
        -1.25,
        0.84,
        0.9
      ],
      "size_xyz": [
        0.3,
        0.3,
        1.8
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/iv_pole",
      "movable": true,
      "mass_kg": 12.0,
      "metadata": {
        "display_label": "iv_pole"
      }
    },
    {
      "entity_id": "bench",
      "entity_type": "therapy_bench",
      "pose_xyz": [
        1.25,
        -1.8599999999999999,
        0.25
      ],
      "size_xyz": [
        1.0,
        0.45,
        0.45
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/therapy_bench",
      "movable": true,
      "mass_kg": 28.0,
      "metadata": {
        "display_label": "instrument_tray"
      }
    },
    {
      "entity_id": "cabinet",
      "entity_type": "cabinet",
      "pose_xyz": [
        -2.4,
        1.5,
        0.6
      ],
      "size_xyz": [
        0.8,
        0.5,
        1.2
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/cabinet",
      "movable": false,
      "mass_kg": 60.0,
      "metadata": {
        "display_label": "cabinet"
      }
    },
    {
      "entity_id": "cart",
      "entity_type": "equipment_cart",
      "pose_xyz": [
        2.25,
        -0.9600000000000001,
        0.5
      ],
      "size_xyz": [
        0.55,
        0.4,
        0.9
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/equipment_cart",
      "movable": true,
      "mass_kg": 18.0,
      "metadata": {
        "display_label": "surgical_equipment"
      }
    },
    {
      "entity_id": "tray",
      "entity_type": "equipment_cart",
      "pose_xyz": [
        -1.25,
        -1.76,
        0.35
      ],
      "size_xyz": [
        0.4,
        0.35,
        0.25
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/equipment_cart",
      "movable": true,
      "mass_kg": 5.0,
      "metadata": {
        "display_label": "instrument_tray"
      }
    },
    {
      "entity_id": "lift",
      "entity_type": "patient_lift",
      "pose_xyz": [
        2.2,
        1.2,
        2.3
      ],
      "size_xyz": [
        1.0,
        0.3,
        0.4
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/patient_lift",
      "movable": false,
      "mass_kg": 40.0,
      "metadata": {
        "support_kind": "ceiling_hang",
        "anchor_host": "ceiling",
        "display_label": "surgical_equipment"
      }
    },
    {
      "entity_id": "container_dyn",
      "entity_type": "equipment_cart",
      "pose_xyz": [
        1.6,
        1.2,
        0.35
      ],
      "size_xyz": [
        0.35,
        0.3,
        0.3
      ],
      "parent_zone": "zone_main",
      "timestamp": 0.0,
      "geometry_ref": "proxy://aabb/equipment_cart",
      "movable": true,
      "mass_kg": 4.0,
      "metadata": {
        "display_label": "medical_containers",
        "dynamic_op": "add_object"
      }
    }
  ]
}