PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Not to mention impurites like mercury, arsenic, sulfur, and other toxics that are released when coal is burned.
http://www.w3.org/ns/prov#wasQuotedFrom
  • yale.edu