PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The limitations of corn-derived ethanol have sent biotech researchers scrambling to devise new biofuels from agricultural waste, algae and other sources that are cheaper, more abundant and don???t compete with the food supply.
http://www.w3.org/ns/prov#wasQuotedFrom
  • forbes.com