{
  "structures": [
    {
      "structure": "reclamation:ruin_walls",
      "weight": 1
    },
    {
      "structure": "reclamation:ruin_walls_copper",
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    }
  ],
  "placement": {
    "type": "minecraft:random_spread",
    "spacing": 5,
    "separation": 3,
    "salt": 1646207470
  }
}