PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The result is large and complicated, but there are some repeated items and you might be able to use information you have about your angles being Real and other information to obtain small values for your variables.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wolfram.com