PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In its most common form it was used to look up information such as phone numbers and e-mail addresses.[1] Today this service has been largely replaced by LDAP. It was used mainly in the early-to-middle 1990s.[2] The name-server was developed by Steve Dorner at the University of Illinois at Urbana-Champaign, at the university's Computing and Communications Services Office (CCSO).
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org