{
  "ec9e10633513410da7c5542504e971ee": {
    "905": {
      "name": "staircase#handrail",
      "visible_pos": [],
      "bbox2d": []
    },
    "906": {
      "name": "staircase#railing",
      "visible_pos": [],
      "bbox2d": []
    }
  }
}