PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Even remote areas, such as the Arctic, now are polluted with toxic materials such as mercury and chlorinated organic chemicals, even though the human activities that generate them often are many thousands of miles away.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nsf.gov