{
  "input" : [
   { "item" : "densealloy", "count" : 3 },
   { "item" : "electromagnet", "count" : 2 },
   { "item" : "coil", "count" : 2 },
   { "item" : "triangliumpyramid", "count" : 2 },
   { "item" : "liquidgravrain", "count" : 20 }
  ],
  "output" : {
    "item" : "gravitonpistol",
    "count" : 1
  },
  "groups" : [ "prototyper", "weapons", "all" ]
}