PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The ocean is a complex mixture of dissolved ions, the pH varies significantly across geographical areas and, obviously, it is wet.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sciencedaily.com