PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • materials for the bismuth component which may be used are, for example, bismuth salts, such as bismuth nitrate, bismuth carbonate, bismuth sulfate and bismuth acetate; bismuth trioxide and metallic bismuth.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com