About: http://webisa.webdatacommons.org/215395956

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	Subscription might be the clue but I must confess I do not understand how to deal with it, I have never subscribed to anything except newspapers or magazines.
http://www.w3.org/ns/prov#wasQuotedFrom	usingenglish.com