About: http://webisa.webdatacommons.org/175321550

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	Since this article is a Gentle Introduction, I refer you to the link cited above if you want to delve deeper.
http://www.w3.org/ns/prov#wasQuotedFrom	mattters.com