{
  "type": "minecraft:crafting_shaped",
  "pattern":
  [
    "RRR",
    "R R",
    "SSS"
  ],
  "key":
  {
    "R":
    {
      "tag": "tfc:rock/hardened"
    },
    "S":
    {
      "tag": "forge:slab/raw_stone"
    }
  },
  "result":
  {
    "item": "cold_sweat:boiler",
    "count": 1
  }
}