{
  "type": "CityJSON",
  "version": "1.1",
  "extensions": {
    "Noise": {
      "url" : "https://raw.githubusercontent.com/cityjson/specs/main/extensions/Noise/noise3.ext.json",
      "version": "1.0"
    }
  },
  "CityObjects": {
    "un": {
      "type": "Building", 
      "attributes": { 
        "storeysAboveGround": "2",
        "+noise-buildingReflection": "just a string",
        "+noise-buildingLDenMax": { 
          "value": 11.2,
          "uom": "meter"
        }
      }
    },
    "deux": {
      "type": "CityFurniture",
      "geometry": [],
      "children": ["trois"]
    },
    "trois": {
      "type": "+NoiseCityFurnitureSegment", 
      "parents": ["deux"],
      "geometry": [],
      "attributes": { 
        "reflectionCorrection": { 
          "value": 11.2,
          "uom": "meter"
        }
      }
    }
  },
  "vertices": [],
  "transform": {
    "scale": [0.0, 0.0, 0.0],
    "translate": [1.0, 1.0, 1.0]
  }
}