PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although originally built for trade in gold and ivory and other resources, Elmina was the first of many trading posts built by Europeans along Africa's western coast that would also come to export slaves.
http://www.w3.org/ns/prov#wasQuotedFrom
  • pbs.org