About: http://webisa.webdatacommons.org/19643129

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	Content needs to be treated as currency, and new inventory attributes, such as viewability and social, must become part of the equation.
http://www.w3.org/ns/prov#wasQuotedFrom	adexchanger.com