PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Since that first cruise to the North Pole in 1996, Ekblad has been back as a polar expedition physician to the Arctic in 2001 and 2005, and to Antarctica in 1997-98 and 2001-02. ???Once you???ve been here, there???s a kind of disease you get: You always want to go back,??? Ekblad said. ???People say, ???What do you see up there???? It???s hard to explain.
http://www.w3.org/ns/prov#wasQuotedFrom
  • whoi.edu