PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I.e if a precondition in the simple branch is violated, you could cause the evaluation of an impure expression, provoking a compile time error (an assertion or an exception is a good idea here, as it continues to complain when the function is invoked in a runtime context).
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackoverflow.com