{
  "type": "siegemachines:siege_workbench",
  "pattern": [
    "bsb",
    "ibi",
    "   "
  ],
  "key": {
    "b": {
      "item": "siegemachines:beam",
      "count": 3
    },
    "s": {
      "item": "minecraft:cobblestone",
      "count": 4
    },
    "i": {
      "tag": "forge:ingots/iron",
      "count": 2
    }
  },
  "result": {
    "item": "siegemachines:counterweight",
    "count": 1
  }
}