About: http://webisa.webdatacommons.org/28293221

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	At the bottom there is a link to a pdf slide show well worth going through.
http://www.w3.org/ns/prov#wasQuotedFrom	thinkprogress.org