About: http://webisa.webdatacommons.org/419249273

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 this question is a few months old, but I had the same issue.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com