PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I quickly came to appreciate the kinds of hurdles that field researchers have to overcome, but got frustrated by the lack of experimental control I had over the situation, and felt that the kinds of questions I was interested in (most of which are questions of the type 'what causes x') could not be answered to my satisfaction in that environment.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisc.edu