PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The new catalyst is much less expensive than others being developed around the world, because it does not contain precious metals, such as platinum or rhodium.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sciencedaily.com