PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • We believe there are such places such as Africa and China (though we have never seen them) because travelers who have been there affirm it.
http://www.w3.org/ns/prov#wasQuotedFrom
  • gracegems.org