About: http://webisa.webdatacommons.org/172991451

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 think this article, which seems well researched, is a very good starting point.
http://www.w3.org/ns/prov#wasQuotedFrom	freerepublic.com