{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/prov/516239695"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/106487904" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/299051308"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/106487904" ] } },

    { "id" : "http://webisa.webdatacommons.org/106487904"
      "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" : [ " C1 or Br and (B) a vanadium compound selected from (1) VO(OR) X Where R is an alkyl or aryl radical, m is not less than 1 or more than 3, and X is C1 or Br and (2) vanadium oxyhalides soluble in the reaction medium; provided that when the vanadium compound is selected from (1) the vanadium concentration in the reaction zone is not greater than 0.260 millimole/liter of solution and the Al/ V ratio" ] ,
        "http://www.w3.org/ns/prov#wasQuotedFrom" : [ "google.es" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/131161655"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/106487904"] } } }
