PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Common Alerting Protocol is a simple but general format for exchanging all-hazard emergency alerts and public warnings over all kinds of networks.
http://www.w3.org/ns/prov#wasQuotedFrom
  • coverpages.org