PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Okayama Chemical, which was established in 1968, produces and sells chlorine, caustic soda and other chlor-alkali products.
http://www.w3.org/ns/prov#wasQuotedFrom
  • chemweek.com