[
  {
    "type": "overmap_terrain",
    "id": [ "basement_bionic" ],
    "copy-from": "generic_city_house_basement",
    "spawns": { "group": "GROUP_BASEMENT_HOUSE", "population": [ 1, 1 ], "chance": 80 }
  },
  {
    "type": "overmap_terrain",
    "id": "lmoe_under_full",
    "copy-from": "lmoe_under_empty"
  }
]
