{
  "input" : [
   { "item" : "irradiumbar", "count" : 5 },
   { "item" : "liquidirradium", "count" : 3 },
   { "item" : "densealloy", "count" : 5 }
  ],
  "output" : {
    "item" : "irradiumspear",
    "count" : 1
  },
  "groups" : [ "prototyper", "weapons", "all" ]
}