About: http://webisa.webdatacommons.org/422151706

Property	Value
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	As the copper catalyst to be used in this invention, there are illustrated metallic copper and such copper compounds as cuprous oxide, cupric oxide, cuprous sulfate, cuprous acetate, cuprous chloride and cupric chloride.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com