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        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "A two-stroke, or two-cycle, engine is a type of internal combustion engine which completes a power cycle with two strokes (up and down movements) of the piston during only one crankshaft revolution. This is in contrast to a \"four-stroke engine\", which requires four strokes of the piston to complete a power cycle." ] ,
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        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/2-Stroke_Engine_ani.gif?width=300"] } } }
