{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/291753983"
      "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" : [ "For example, if carbonate, nitrate or other salts are used as the metal oxide source, it may be desirable to calcine (e.g., by heating them in air at about 400-1000??? C.) such materials prior to adding them with the other metal oxide source materials." ] ,
        "http://www.w3.org/ns/prov#wasQuotedFrom" : [ "google.fr" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/151309078"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/291753983" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/80628929"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/291753983"] } } }
