PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In the early 1990s, computer scientist and activist Phil Zimmerman created an encryption program called Pretty Good Privacy, or PGP for short, to block the government and other snoopers from reading the emails and files of users.
http://www.w3.org/ns/prov#wasQuotedFrom
  • reuters.com