{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/134866550"
      "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 procedure for preparation of polymers of structure (A) involves addition of the maleic anhydride copolymer to aqueous solutions of an alkali metal hydroxide, such as sodium hydroxide and potassium hydroxide, wherein the alkali metal salts of the corresponding maleic acid copolymer are readily produced." ] ,
        "http://www.w3.org/ns/prov#wasQuotedFrom" : [ "google.com" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/352787309"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/134866550"] } } }
