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    { "id" : "http://dbpedia.org/resource/Fuel_cell"
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        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction of positively charged hydrogen ions with oxygen or another oxidizing agent. Fuel cells are different from batteries in that they require a continuous source of fuel and oxygen or air to sustain the chemical reaction, whereas in a battery the chemicals present in the battery react with each other to generate an electromotive force (emf)." ] ,
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        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Fuel_cell_NASA_p48600ac.jpg?width=300"] } } }
