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    { "id" : "http://dbpedia.org/resource/Shock_diamond"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Shock diamonds (also known as Mach diamonds, Mach disks,  Mach rings, doughnut tails or thrust diamonds) are a formation of standing wave patterns that appears in the supersonic exhaust plume of an aerospace propulsion system, such as a supersonic jet engine, rocket, ramjet, or scramjet, when it is operated in an atmosphere. The diamonds are formed from a complex flow field and are visible due to the abrupt density changes caused by standing shock waves." ] ,
        "http://www.w3.org/2002/07/owl#differentFrom" : [ "http://dbpedia.org/resource/Diamond" ] ,
        "http://xmlns.com/foaf/0.1/depiction" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/J58_AfterburnerT.jpeg" ] ,
        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/J58_AfterburnerT.jpeg?width=300"] } } }
