PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • sting the additional amount of the rare earth oxide, such as TiO2, La2O3 and Nd2O3.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com