PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Pfizer plant was emitting methanol, hydrogen chloride, methylene chloride, MTBE, hexane, toluene and other chemicals classified by the EPA as hazardous air pollutants.
http://www.w3.org/ns/prov#wasQuotedFrom
  • eco-chick.com