About: http://webisa.webdatacommons.org/73196604

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 will tune in later, but for now here is a link to the most poignant piece I have found on the 'net.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com