PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I am going to stay out of the pointless Kasparov vs Morphy debates :) and simply say that your website is a very valuable resource for those interested in chess history. 9 months ago
http://www.w3.org/ns/prov#wasQuotedFrom
  • chess.com