PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The only way you can run into the problem you are seeing here is if DoWork is invoked on a thread other than the UI thread.
http://www.w3.org/ns/prov#wasQuotedFrom
  • stackoverflow.com