About: http://webisa.webdatacommons.org/417642157

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	Anyways, like I said try adding that debug line to your script to see if you can get any more specific of an error other than just the 500 Error.
http://www.w3.org/ns/prov#wasQuotedFrom	dreamincode.net