{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/453149875"
      "properties" : {
        "http://www.w3.org/1999/02/22-rdf-syntax-ns#type" : [ "http://www.w3.org/ns/prov#Entity" ] ,
        "http://www.w3.org/ns/prov#value" : [ "The present invention is a novel medical tracking system and method for determining the position and orientation of an object, such as a probe or catheter, utilizing a single axis position sensor and a novel position and orientation determination method." ] ,
        "http://www.w3.org/ns/prov#wasQuotedFrom" : [ "google.com" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/137300572"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/453149875"] } } }
