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    { "id" : "http://dbpedia.org/resource/Exploration_of_Mars"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "The exploration of Mars is the study of Mars by spacecraft. Probes sent from Earth beginning in the late 20th century have yielded a dramatic increase in knowledge about the Martian system, focused primarily on understanding its geology and habitability potential.Engineering interplanetary journeys is very complicated, so the exploration of Mars has experienced a high failure rate, especially in earlier attempts." ] ,
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        "http://www.w3.org/2000/01/rdf-schema#seeAlso" : [ "http://dbpedia.org/resource/Mars_landing",
          "http://dbpedia.org/resource/Mars_sample_return_mission" ] ,
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        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/PIA19396-PlanetMars-OrbitsOfMoonsAndOrbiters-20150504.jpg?width=300"] } } }
