{
  "feature": {
    "type": "minecraft:disk",
    "config": {
      "state_provider": {
        "fallback": {
          "type": "minecraft:simple_state_provider",
          "state": {
            "Name": "minecraft:air"
          }
        },
        "rules": []
      },
      "target": {
        "type": "minecraft:all_of",
        "predicates": [
          {
            "type": "minecraft:all_of",
            "predicates": [
              {
                "type": "minecraft:any_of",
                "predicates": [
                  {
                    "type": "minecraft:matching_block_tag",
                    "tag": "wythers:river_carver_replaceables"
                  }
                ]
              },
              {
                "type": "minecraft:matching_block_tag",
                "offset": [
                  1,
                  2,
                  0
                ],
                "tag": "wythers:air_and_plants"
              },
              {
                "type": "minecraft:matching_block_tag",
                "offset": [
                  -1,
                  2,
                  0
                ],
                "tag": "wythers:air_and_plants"
              },
              {
                "type": "minecraft:matching_block_tag",
                "offset": [
                  0,
                  2,
                  1
                ],
                "tag": "wythers:air_and_plants"
              },
              {
                "type": "minecraft:matching_block_tag",
                "offset": [
                  0,
                  2,
                  -1
                ],
                "tag": "wythers:air_and_plants"
              },
              {
                "type": "minecraft:matching_block_tag",
                "offset": [
                  0,
                  1,
                  0
                ],
                "tag": "wythers:air_and_plants"
              },
              {
                "type": "minecraft:any_of",
                "predicates": [
                  {
                    "type": "minecraft:matching_blocks",
                    "offset": [
                      1,
                      0,
                      0
                    ],
                    "blocks": "minecraft:air"
                  },
                  {
                    "type": "minecraft:matching_blocks",
                    "offset": [
                      -1,
                      0,
                      0
                    ],
                    "blocks": "minecraft:air"
                  },
                  {
                    "type": "minecraft:matching_blocks",
                    "offset": [
                      0,
                      0,
                      1
                    ],
                    "blocks": "minecraft:air"
                  },
                  {
                    "type": "minecraft:matching_blocks",
                    "offset": [
                      0,
                      0,
                      -1
                    ],
                    "blocks": "minecraft:air"
                  }
                ]
              },
              {
                "type": "minecraft:not",
                "predicate": {
                  "type": "minecraft:any_of",
                  "predicates": [
                    {
                      "type": "minecraft:matching_fluids",
                      "offset": [
                        1,
                        0,
                        0
                      ],
                      "fluids": "minecraft:water"
                    },
                    {
                      "type": "minecraft:matching_fluids",
                      "offset": [
                        -1,
                        0,
                        0
                      ],
                      "fluids": "minecraft:water"
                    },
                    {
                      "type": "minecraft:matching_fluids",
                      "offset": [
                        0,
                        0,
                        1
                      ],
                      "fluids": "minecraft:water"
                    },
                    {
                      "type": "minecraft:matching_fluids",
                      "offset": [
                        0,
                        0,
                        -1
                      ],
                      "fluids": "minecraft:water"
                    }
                  ]
                }
              }
            ]
          }
        ]
      },
      "radius": {
        "type": "minecraft:uniform",
        "value": {
          "min_inclusive": 3,
          "max_inclusive": 4
        }
      },
      "half_height": 4
    }
  },
  "placement": [
    {
      "type": "minecraft:count",
      "count": 90
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "type": "minecraft:heightmap",
      "heightmap": "MOTION_BLOCKING"
    },
    {
      "type": "minecraft:biome"
    }
  ]
}
