{
  "type": "minecraft:random_patch",
  "config": {
    "tries": 25,
    "xz_spread": 10,
    "y_spread": 5,
    "feature": {
      "feature": {
        "type": "minecraft:random_selector",
        "config": {
          "default": {
            "feature": {
              "type": "minecraft:no_op",
              "config": {}
            },
            "placement": []
          },
          "features": [
            {
              "chance": 0.5,
              "feature": {
                "feature": {
                  "type": "minecraft:netherrack_replace_blobs",
                  "config": {
                    "target": {
                      "Name": "minecraft:air"
                    },
                    "state": {
                      "Name": "minecraft:andesite"
                    },
                    "radius": {
                      "type": "uniform",
                      "min_inclusive": 1,
                      "max_inclusive": 7
                    }
                  }
                },
                "placement": []
              }
            },
            {
              "chance": 0.5,
              "feature": {
                "feature": {
                  "type": "minecraft:netherrack_replace_blobs",
                  "config": {
                    "target": {
                      "Name": "minecraft:air"
                    },
                    "state": {
                      "Name": "minecraft:diorite"
                    },
                    "radius": {
                      "type": "uniform",
                      "min_inclusive": 1,
                      "max_inclusive": 7
                    }
                  }
                },
                "placement": []
              }
            },
            {
              "chance": 0.5,
              "feature": {
                "feature": {
                  "type": "minecraft:netherrack_replace_blobs",
                  "config": {
                    "target": {
                      "Name": "minecraft:air"
                    },
                    "state": {
                      "Name": "minecraft:granite"
                    },
                    "radius": {
                      "type": "uniform",
                      "min_inclusive": 1,
                      "max_inclusive": 7
                    }
                  }
                },
                "placement": []
              }
            }
          ]
        }
      },
      "placement": []
    }
  }
}