About: http://webisa.webdatacommons.org/170092445

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 have not followed the matter especially closely, and was going off my strong recollection of a comprehensive study from a few years back (no link, alas).
http://www.w3.org/ns/prov#wasQuotedFrom	bbtf.org