PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • it is been widely remarked upon that passengers are unhappy with airlines, and that many passengers seem to be particularly unhappy with United Airlines.
http://www.w3.org/ns/prov#wasQuotedFrom
  • courant.com