PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • AOL and Gmail provide that for free, but most consumer Internet providers are stuck in the 1980s when it comes to e-mail and only offer POP (Post Office Protocol); where IMAP is a sync service, POP only does downloads.
http://www.w3.org/ns/prov#wasQuotedFrom
  • washingtonpost.com