About: http://webisa.webdatacommons.org/35602388

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 technically they can be, but most of the time they are caused by other factors.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeekhealth.com