PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • That two-vent system apparently makes the air currents quite freaky: at the moment there is a normal-looking, rising plume, but right after sunrise it went out almost horizontal.
http://www.w3.org/ns/prov#wasQuotedFrom
  • scienceblogs.com