PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Analysts cite several reasons for the rise, including the fact that Western European energy utilities effectively lobbied for free pollution permits as part of the European Emission Trading Scheme (ETS).
http://www.w3.org/ns/prov#wasQuotedFrom
  • worldchanging.com