{
  "type": "minecraft:disk",
  "config": {
    "half_height": 2,
    "radius": {
      "type": "minecraft:uniform",
      "max_inclusive": 5,
      "min_inclusive": 2
    },
    "state_provider": {
      "fallback": {
        "type": "minecraft:simple_state_provider",
        "state": {
          "Name": "minecraft:gravel"
        }
      },
      "rules": []
    },
    "target": {
      "type": "minecraft:matching_blocks",
      "blocks": [
        "minecraft:dirt",
        "minecraft:grass_block"
      ]
    }
  }
}