About: http://webisa.webdatacommons.org/403095688

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	Yahoo for example does not provide all those advertisements on their pages themselves.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org