{
  "input" : [
    { "item" : "metalchunk", "count" : 1 },
    { "item" : "lead", "count" : 1 }
  ],
  "output" : {
    "item" : "durasteelbar",
    "count" : 3
  },
  "groups" : [ "powerpress", "materials", "all" ]
}
