{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/214122747"
      "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" : [ "Because the number of alternatives can be quite large, especially in a parallel system with a large number of nodes running a large relational database, the query optimizer module 40 uses statistics and/or sampling techniques to reduce the search space in optimizing queries." ] ,
        "http://www.w3.org/ns/prov#wasQuotedFrom" : [ "google.com" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/386310432"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/214122747"] } } }
