PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This section also includes information about friend activity feeds, which were released in December.The Activity feeds section explains the different types of events that are listed in activity feeds.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com