PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Governments and other institutions are increasingly using Twitter, Facebook and other social networking sites to get official information and news out to journalists and the general public.
http://www.w3.org/ns/prov#wasQuotedFrom
  • reuters.com