PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Cleaner energy for a cleaner environment: Research can help America create cleaner sources of energy and energy-efficient technologies, such as fuel cells that emit only water, cars that get 80 miles per gallon, and bioenergy derived from new cash crops.
http://www.w3.org/ns/prov#wasQuotedFrom
  • fool.com