PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • According to Terry Barker, director of the University of Cambridge's programme on sustainable energy use, this figure is an underestimate.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newscientist.com