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    { "id" : "http://dbpedia.org/resource/Smelting"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Smelting is a form of extractive metallurgy; its main use is to produce a base metal from its ore. This includes production of silver, iron, copper and other base metals from their ores. Smelting makes use of heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving just the metal base behind. The reducing agent is commonly a source of carbon such as coke, or in earlier times charcoal." ] ,
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        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/TVA_phosphate_smelting_furnace.jpg?width=300"] } } }
