PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Biofuel is desirable because it is a renewable energy source, unlike other natural resources such as petroleum, coal and nuclear fuels.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com