{
  "input" : [
    { "item" : "ironbar", "count" : 2 },
    { "item" : "steelbar", "count" : 3 },
    { "item" : "glassmaterial", "count" : 2 }
  ],
  "output" : {
    "item" : "labdoor",
    "count" : 1
  },
  "groups" : [ "prototyper", "other", "all", "tools" ]
}
