{
  "input" : [
    { "item" : "dirtmaterial", "count" : 1 },
    { "item" : "ff_plastic", "count" : 2 }
  ],
  "output" : {
    "item" : "hydrotubematerial",
    "count" : 1
  },
  "groups" : [ "prototyper", "materials", "all" ]
}