[
  {
    "type": "overmap_terrain",
    "id": [
      "lab_surface_brick_blockA2",
      "lab_surface_brick_blockA3",
      "lab_surface_brick_blockA4",
      "lab_surface_brick_blockB2",
      "lab_surface_brick_blockB3",
      "lab_surface_brick_blockB4",
      "lab_surface_brick_blockC4",
      "lab_surface_brick_blockD2",
      "lab_surface_brick_blockD3",
      "lab_surface_brick_blockD4",
      "lab_surface_brick_blockE2",
      "lab_surface_brick_blockE3",
      "lab_surface_brick_blockE4"
    ],
    "name": "research facility",
    "sym": "l",
    "color": "light_gray",
    "spawns": { "group": "GROUP_LAB_RESEARCH", "population": [ 10, 25 ], "chance": 60 },
    "extras": "research_facility_interior",
    "see_cost": "full_high",
    "mondensity": 2
  }
]
