[
  {
    "id": "ceramics_workroom",
    "type": "item_group",
    "items": [
      [ "cooking_oil", 15 ],
      [ "mag_fabrication", 5 ],
      [ "manual_fabrication", 5 ],
      [ "mag_survival", 10 ],
      [ "wax", 30 ],
      [ "straw_pile", 15 ],
      [ "charcoal", 25 ],
      [ "clay_lump", 100 ]
    ]
  },
  {
    "id": "metal_workshop",
    "type": "item_group",
    "items": [
      { "group": "tools_blacksmith", "prob": 50 },
      { "group": "supplies_metal", "prob": 40 },
      [ "welding_book", 5 ],
      [ "mag_fabrication", 15 ],
      [ "manual_fabrication", 15 ],
      [ "goggles_welding", 10 ],
      [ "apron_leather", 25 ],
      [ "gloves_leather", 25 ],
      [ "mask_dust", 15 ],
      { "item": "ear_plugs", "prob": 25, "count": [ 1, 3 ] },
      { "item": "charcoal", "prob": 25, "charges": [ 25, 50 ] },
      [ "sandpaper", 75 ],
      {
        "collection": [
          { "item": "oxy_torch", "prob": 100 },
          {
            "distribution": [ { "item": "weldtank", "prob": 100, "count": [ 1, 2 ] }, { "item": "tinyweldtank", "prob": 100, "count": [ 1, 3 ] } ],
            "prob": 100
          }
        ],
        "prob": 6
      },
      [ "oxy_torch", 5 ],
      { "item": "weldtank", "prob": 2, "count": [ 1, 2 ] },
      { "item": "tinyweldtank", "prob": 2, "count": [ 1, 3 ] },
      { "item": "oxygen_cylinder", "prob": 10, "count": [ 1, 2 ] },
      { "item": "polisher", "prob": 1, "charges": [ 0, 100 ] },
      { "item": "welder", "prob": 2, "charges": [ 0, 500 ] }
    ]
  },
  {
    "id": "glass_workroom",
    "type": "item_group",
    "items": [
      [ "pipe", 90 ],
      [ "glassblowing_book", 50 ],
      [ "tongs", 30 ],
      [ "crucible", 30 ],
      [ "chisel", 30 ],
      [ "glasses_safety", 25 ],
      { "item": "charcoal", "prob": 50, "charges": [ 25, 50 ] },
      { "item": "glass_shard", "prob": 90, "count": [ 1, 8 ] },
      [ "material_sand", 80 ],
      { "item": "chemistry_set", "prob": 5, "charges": [ 0, 500 ] },
      [ "sandpaper", 50 ]
    ]
  }
]
