About: http://webisa.webdatacommons.org/323328425

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	The code below is a simplified version of what I am trying to do, but it does reproduce the error.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com