{
  "type": "minecraft:crafting_shaped",
  "pattern": [
    "R",
    "B",
    "I"
  ],
  "key": {
    "B": {
      "item": "create:brass_casing"
    },
    "R": {
      "item": "create:electron_tube"
    },
    "I": {
      "item": "minecraft:observer"
    }
  },
  "result": {
    "item": "create:content_observer"
  }
}