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    { "id" : "http://dbpedia.org/resource/Curl_(mathematics)"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "In vector calculus, the curl  is a vector operator that describes the infinitesimal rotation of a 3-dimensional vector field. At every point in the field, the curl of that point is represented by a vector.  The attributes of this vector (length and direction) characterize the rotation at that point.The direction of the curl is the axis of rotation, as determined by the right-hand rule, and the magnitude of the curl is the magnitude of rotation." ] ,
        "http://xmlns.com/foaf/0.1/depiction" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Curl.svg" ] ,
        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Curl.svg?width=300"] } } }
