PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A few years ago, extensive pollution abatement equipment was installed at Taconite Harbor, significantly reducing pollutants that contribute to acid rain and other problems.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wtip.org