{
  "type": "minecraft:random_boolean_selector",
  "config": {
    "feature_false": {
      "feature": {
        "type": "minecraft:spring_feature",
        "config": {
          "hole_count": 1,
          "requires_block_below": false,
          "rock_count": 4,
          "state": {
            "Name": "crystal_chronicles:blood_block",
            "Properties": {
              "falling": "true"
            }
          },
          "valid_blocks": "crystal_chronicles:flesh_block"
        }
      },
      "placement": []
    },
    "feature_true": {
      "feature": {
        "type": "minecraft:spring_feature",
        "config": {
          "hole_count": 1,
          "requires_block_below": false,
          "rock_count": 4,
          "state": {
            "Name": "minecraft:water",
            "Properties": {
              "falling": "true"
            }
          },
          "valid_blocks": "crystal_chronicles:flesh_block"
        }
      },
      "placement": []
    }
  }
}