PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In South Africa, the majority of fuel and electricity used comes from ???dirty???, non-renewable sources such as coal, oil and gas.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wwf.org.za