PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In another aspect, the invention is a system that includes a conveyance device such as a wireline or a drilling tubular for conveying a logging tool into a borehole, the logging tool having a source for irradiating said earth formation and a plurality of detectors spaced apart from the source for making measurements resulting from interaction of the radiation with the earth formation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com