PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The use of coal-based power is dangerous to the environment as it releases pollutants such as oxides of sulfur, nitric oxide, carbon dioxide among others.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org