{
 "spatial code schema": {
  "objects": {
   "<object class>": {
    "count": {
     "unit": null,
     "description": "number of instances of this class in the compact spatial code (that schema's per-class oriented-box list length)"
    },
    "instances": [
     {
      "position": {
       "x coordinate": {
        "unit": "meters",
        "description": "x coordinate of this instance's compact 3D oriented bounding box center"
       },
       "y coordinate": {
        "unit": "meters",
        "description": "y coordinate of this instance's compact 3D oriented bounding box center"
       },
       "height above floor": {
        "unit": "meters",
        "description": "height coordinate of this instance's compact 3D oriented bounding box center"
       }
      },
      "longest dimension": {
       "unit": "meters",
       "description": "longest of this instance's compact 3D oriented bounding box dimensions"
      }
     }
    ]
   }
  },
  "room": {
   "floor area": {
    "unit": "square meters",
    "description": "shoelace area of the compact spatial code's floor boundary polygons, with every interior hole subtracted"
   }
  },
  "closest classes distance meters from": {
   "<object class>": {
    "<other object class>": {
     "distance": {
      "unit": "meters",
      "description": "estimated distance in meters between an object of this class and an object of the other class"
     },
     "closeness rank": {
      "unit": null,
      "description": "1 = the nearest other class to this one, 2 = second-nearest, and so on; ranked by nearest-instance proximity, so use the rank (not the distance values) to compare which class is closest"
     }
    }
   }
  },
  "appearance order": {
   "unit": null,
   "description": "class names ordered by earliest compact 'first visible time' across all of that class's instances"
  }
 },
 "objects": {
  "sofa": {
   "count": 1,
   "instances": [
    {
     "position": {
      "x coordinate": "-2.21 meters",
      "y coordinate": "0.62 meters",
      "height above floor": "0.36 meters"
     },
     "longest dimension": "1.81 meters"
    }
   ]
  },
  "table": {
   "count": 1,
   "instances": [
    {
     "position": {
      "x coordinate": "-0.41 meters",
      "y coordinate": "3.0 meters",
      "height above floor": "0.39 meters"
     },
     "longest dimension": "1.07 meters"
    }
   ]
  },
  "chair": {
   "count": 1,
   "instances": [
    {
     "position": {
      "x coordinate": "0.09 meters",
      "y coordinate": "3.65 meters",
      "height above floor": "0.43 meters"
     },
     "longest dimension": "0.82 meters"
    }
   ]
  },
  "fireplace": {
   "count": 1,
   "instances": [
    {
     "position": {
      "x coordinate": "-3.65 meters",
      "y coordinate": "1.66 meters",
      "height above floor": "0.69 meters"
     },
     "longest dimension": "1.61 meters"
    }
   ]
  }
 },
 "room": {
  "floor area": "21.4 square meters"
 },
 "closest classes distance meters from": {
  "sofa": {
   "fireplace": {
    "distance": "0.39 meters",
    "closeness rank": 1
   },
   "table": {
    "distance": "1.54 meters",
    "closeness rank": 2
   },
   "chair": {
    "distance": "2.58 meters",
    "closeness rank": 3
   }
  },
  "table": {
   "chair": {
    "distance": "0.0 meters",
    "closeness rank": 1
   },
   "sofa": {
    "distance": "1.54 meters",
    "closeness rank": 2
   },
   "fireplace": {
    "distance": "2.63 meters",
    "closeness rank": 3
   }
  },
  "chair": {
   "table": {
    "distance": "0.0 meters",
    "closeness rank": 1
   },
   "sofa": {
    "distance": "2.58 meters",
    "closeness rank": 2
   },
   "fireplace": {
    "distance": "3.54 meters",
    "closeness rank": 3
   }
  },
  "fireplace": {
   "sofa": {
    "distance": "0.39 meters",
    "closeness rank": 1
   },
   "table": {
    "distance": "2.63 meters",
    "closeness rank": 2
   },
   "chair": {
    "distance": "3.54 meters",
    "closeness rank": 3
   }
  }
 },
 "appearance order": ["sofa", "table", "chair", "fireplace"]
}