PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • an expert is a man who has made all mistakes which can happen in very narrow fields. chess is not a narrow field 3 years ago
http://www.w3.org/ns/prov#wasQuotedFrom
  • chess.com