About: http://webisa.webdatacommons.org/404151668

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Since all you are wanting to do is display progress information from the worker thread then I think you will find that this solution is a great alternative to the marshaling solution.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com