About: http://webisa.webdatacommons.org/42412085

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	As the site you link is a speculative one I would think that the reviewer is wrong and not the majority of the articles found by google.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com