{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/prov/131467855"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/109434295" ] } },

    { "id" : "http://webisa.webdatacommons.org/109434295"
      "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" : [ "In the above reaction sequence, R is an alkyl or aryl group and Ar stands for a segment of a polycarbonate polymer." ] ,
        "http://www.w3.org/ns/prov#wasQuotedFrom" : [ "google.com" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/131161655"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/109434295"] } } }
