PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Black tries block the attack on h7 by returning material, but, as it happens, the move is a mistake.
http://www.w3.org/ns/prov#wasQuotedFrom
  • chessimprover.com