{
  "type": "minecraft:random_selector",
  "config": {
    "features": [],
    "default": {
      "feature": {
        "type": "minecraft:disk",
        "config": {
          "half_height": 4,
          "radius": {
            "type": "minecraft:uniform",
            "value": {
              "min_inclusive": 4,
              "max_inclusive": 4
            }
          },
          "state_provider": {
            "fallback": {
              "type": "minecraft:simple_state_provider",
              "state": {
                "Name": "minecraft:podzol",
                "Properties": {
                  "snowy": "false"
                }
              }
            },
            "rules": []
          },
          "target": {
            "type": "minecraft:matching_blocks",
            "blocks": [
              "minecraft:grass_block"
            ]
          }
        }
      },
      "placement": [
        {
          "type": "minecraft:block_predicate_filter",
          "predicate": {
            "type": "minecraft:matching_fluids",
            "fluids": "minecraft:water"
          }
        }
      ]
    }
  }
}
