PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Los Angeles News Group Many living in South Africa took to Twitter, Facebook, Instagram and other social media to express their respect for Mandela and grieve his death.
http://www.w3.org/ns/prov#wasQuotedFrom
  • adweek.com