PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • You should use exceptions except in cases where you know the performance penalty matters, because they make your code more reliable and let you assume that the previous code executed successfully.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackexchange.com