PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The best known of these deposits is Oklo, discovered in 1968, which produced over 14,000 tU. (Oklo is famous for its fossil nuclear reactors, which operated naturally in the wet sandstone orebody about two billion years ago.)
http://www.w3.org/ns/prov#wasQuotedFrom
  • world-nuclear.org