{
  "type": "minecraft:simple_random_selector",
  "features": [
    {
      "feature": {
        "type": "minecraft:speleothem",
        "base_block": "minecraft:sulfur",
        "pointed_block": "minecraft:sulfur_spike",
        "replaceable_blocks": "#minecraft:sulfur_spike_replaceable_blocks"
      },
      "placement": [
        {
          "type": "minecraft:environment_scan",
          "allowed_search_condition": {
            "type": "minecraft:any_of",
            "predicates": [
              {
                "type": "minecraft:matching_block_tag",
                "tag": "minecraft:air"
              },
              {
                "type": "minecraft:matching_blocks",
                "blocks": "minecraft:water"
              }
            ]
          },
          "direction_of_search": "down",
          "max_steps": 12,
          "target_condition": {
            "type": "minecraft:solid"
          }
        },
        {
          "type": "minecraft:offset",
          "x": 0,
          "y": 1,
          "z": 0
        }
      ]
    },
    {
      "feature": {
        "type": "minecraft:speleothem",
        "base_block": "minecraft:sulfur",
        "pointed_block": "minecraft:sulfur_spike",
        "replaceable_blocks": "#minecraft:sulfur_spike_replaceable_blocks"
      },
      "placement": [
        {
          "type": "minecraft:environment_scan",
          "allowed_search_condition": {
            "type": "minecraft:any_of",
            "predicates": [
              {
                "type": "minecraft:matching_block_tag",
                "tag": "minecraft:air"
              },
              {
                "type": "minecraft:matching_blocks",
                "blocks": "minecraft:water"
              }
            ]
          },
          "direction_of_search": "up",
          "max_steps": 12,
          "target_condition": {
            "type": "minecraft:solid"
          }
        },
        {
          "type": "minecraft:offset",
          "x": 0,
          "y": -1,
          "z": 0
        }
      ]
    }
  ]
}