[
  {
    "type": "mapgen",
    "update_mapgen_id": "fbmc_mansion_+3",
    "object": { "set": [ { "point": "furniture", "id": "f_bulletin", "x": 17, "y": 20 } ] }
  },
  {
    "type": "mapgen",
    "update_mapgen_id": "fbmc_mansion_+3_radio",
    "object": {
      "set": [
        { "point": "terrain", "id": "t_radio_tower", "x": 6, "y": 0 },
        { "point": "terrain", "id": "t_radio_controls", "x": 6, "y": 1 }
      ]
    }
  }
]
