About: http://webisa.webdatacommons.org/451098426

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 am sure this could be applied to scenarios other than setting variation, but he is the most obvious application.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com