About: http://webisa.webdatacommons.org/427779049

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	(FWIW, in my Google search just now, using the acronym brought up lots of companies that sell it, but using the full term brought up some other sources such as the one above.
http://www.w3.org/ns/prov#wasQuotedFrom	washingtonpost.com