PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In Windows Live Mail 12, Microsoft introduced Storage Folders which is a repository for email, folders created by the user, accounts, newsgroup and other data.
http://www.w3.org/ns/prov#wasQuotedFrom
  • activewin.com