About: http://webisa.webdatacommons.org/131206200

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	In your example data, the location is a directory, but in your code, you try to write output to it.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com