PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • While pursuing his M.S., Gleick also worked as a research and teaching associate with Professor John Holdren, who became his mentor (and fly-fishing instructor). ???It was clear to me even then that water was an underappreciated and understudied resource, and a source of real future problems,??? Gleick says.
http://www.w3.org/ns/prov#wasQuotedFrom
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