{
  "condition": "minecraft:location_check",
  "predicate": {
    "structures": [
      "minecraft:ruined_portal",
      "minecraft:ruined_portal_desert",
      "minecraft:ruined_portal_jungle",
      "minecraft:ruined_portal_mountain",
      "minecraft:ruined_portal_nether",
      "minecraft:ruined_portal_ocean",
      "minecraft:ruined_portal_swamp"
    ]
  }
}