{
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      "structure": "ati_structures:underwater_dungeon",
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    {
      "structure": "ati_structures:silverfish_nest",
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    {
      "structure": "ati_structures:sculk_deposit",
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    {
      "structure": "ati_structures:rotting_temple_underground",
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    },
    {
      "structure": "ati_structures:pufferfish_cave",
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  ],
  "placement": {
    "type": "minecraft:random_spread",
    "salt": 123895344,
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  }
}
