PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, as Douglas Zare has pointed out in the comments, the set of transcendental numbers of irrationality measure $>2$ has measure 0, so that in most cases it is unfortunately not useful as a comparison.
http://www.w3.org/ns/prov#wasQuotedFrom
  • mathoverflow.net