About: http://webisa.webdatacommons.org/161317885

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 one of the products that does this best in my mind is Gmail.
http://www.w3.org/ns/prov#wasQuotedFrom	bothsidesofthetable.com