{
  "feature": "clifftree:shelf_fungus",
  "placement": [
    {
      "type": "minecraft:count",
      "count": 25
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "type": "minecraft:height_range",
      "height": {
        "type": "minecraft:uniform",
        "min_inclusive": {
          "absolute": -50
        },
        "max_inclusive": {
          "absolute": 64
        }
      }
    },
    {
      "type": "minecraft:block_predicate_filter",
      "predicate": {
        "type": "minecraft:all_of",
        "predicates":
        [
          {
            "type": "minecraft:matching_blocks",
            "blocks": "air"
          },
          {
        "type": "minecraft:any_of",
        "predicates": [
          {
            "type": "minecraft:matching_block_tag",
            "offset": [
              1,
              0,
              0
            ],
            "tag": "base_stone_overworld"
          },
          {
            "type": "minecraft:matching_block_tag",
            "offset": [
              -1,
              0,
              0
            ],
            "tag": "base_stone_overworld"
          },
          {
            "type": "minecraft:matching_block_tag",
            "offset": [
              0,
              0,
              1
            ],
            "tag": "base_stone_overworld"
          },
          {
            "type": "minecraft:matching_block_tag",
            "offset": [
              0,
              0,
              -1
            ],
            "tag": "base_stone_overworld"
          }
        ]
      }
      ]
      }
    },
    {
      "type": "biome"
    }
  ]
}
