About: http://webisa.webdatacommons.org/145742042

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	If the code you posted is a complete program, I can not see how it is supposed to work.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com