PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Those are ultra-thin separation membranes meant to improve the production of biofuels, plastics and other industrial materials.
http://www.w3.org/ns/prov#wasQuotedFrom
  • icis.com