PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Bioethanol, biodiesel, and other alternative fuels will be needed to fill an expected petroleum supply gap, sources say.
http://www.w3.org/ns/prov#wasQuotedFrom
  • chemweek.com