PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Refineries emit carcinogens, such as benzene and formaldehyde, as well as other chemical pollutants.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ieer.org