{
  "type": "minecraft:crafting_shaped",
  "category": "building",
  "key": {
    "#": "minecraft:iron_nugget",
    "I": "minecraft:iron_ingot"
  },
  "pattern": [
    "#",
    "I",
    "#"
  ],
  "result": {
    "count": 4,
    "id": "minecraft:chain"
  }
}