PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Social login, also known as social sign-in, is a form of single sign-on using existing login information from a social networking service such as Facebook or Twitter to sign into a third party website in lieu of creating a new login account specifically for that website.
http://www.w3.org/ns/prov#wasQuotedFrom
  • conversity.be