{
    "structures": [
      {
        "structure": "tw:birch_tower",
        "weight": 6
      }
    ],
    "placement": {
      "type": "minecraft:random_spread",
      "salt": 4539250,
      "frequency": 0.60,
      "spacing": 38,
      "separation": 29,
      "spread_type": "triangular",
      "frequency_reduction_method": "default"
    }
  }
  