PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I would also agree that some form of web-based or other system with a uniform standard would be the way to go.
http://www.w3.org/ns/prov#wasQuotedFrom
  • becker-posner-blog.com