PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I qualify the extent to which protest organizers may have used Facebook because Iran blocks access to the social network along with many other types of media, so people in the country have limited ability to get any message from Internet sources.
http://www.w3.org/ns/prov#wasQuotedFrom
  • adweek.com