PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Is it true that waste-to-energy is a significant source of both air emissions and toxic wastes containing dioxin, mercury, lead and other harmful substances?
http://www.w3.org/ns/prov#wasQuotedFrom
  • wte.org