About: http://webisa.webdatacommons.org/418463121

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	I know that this post is a little old but I had the same problem and tried to fix it several hours.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com