{
  "item":
  [
    ["oil-steel-furnace", "fluid-furnace"],
    ["oil-mixing-steel-furnace", "fluid-mixing-furnace"],
    ["oil-chemical-steel-furnace", "fluid-chemical-furnace"]
  ],
  "recipe":
  [
    ["oil-steel-furnace", "fluid-furnace"],
    ["steel-furnace-from-oil-steel-furnace", "steel-furnace-from-fluid-furnace"],
    ["oil-mixing-steel-furnace", "fluid-mixing-furnace"],
    ["mixing-steel-furnace-from-oil-mixing-steel-furnace", "steel-mixing-furnace-from-fluid-mixing-furnace"],
    ["oil-mixing-steel-furnace-from-oil-steel-furnace", "fluid-mixing-furnace-from-fluid-furnace"],
    ["oil-steel-furnace-from-oil-mixing-steel-furnace", "fluid-furnace-from-fluid-mixing-furnace"],
    ["oil-chemical-steel-furnace", "fluid-chemical-furnace"],
    ["chemical-steel-furnace-from-oil-chemical-steel-furnace", "steel-chemical-furnace-from-fluid-chemical-furnace"],
    ["oil-chemical-steel-furnace-from-oil-steel-furnace", "fluid-chemical-furnace-from-fluid-furnace"],
    ["oil-steel-furnace-from-oil-chemical-steel-furnace", "fluid-furnace-from-fluid-chemical-furnace"]
  ],
  "entity":
  [
    ["oil-steel-furnace", "fluid-furnace"],
    ["oil-mixing-steel-furnace", "fluid-mixing-furnace"],
    ["oil-chemical-steel-furnace", "fluid-chemical-furnace"]
  ],
  "technology":
  [
    ["oil-steel-furnace", "fluid-furnace"],
    ["oil-mixing-steel-furnace", "fluid-mixing-furnace"],
    ["oil-chemical-steel-furnace", "fluid-chemical-furnace"]
  ]
}