About: http://webisa.webdatacommons.org/329262504

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	But the construction sited in OP is a bit different to the one you mentioned in your post.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com