About: http://webisa.webdatacommons.org/20065128

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http://www.w3.org/ns/prov#value	Included are letters, historical documents, diary excerpts, political cartoons, photos, art, maps, ads, and other artifacts that are classified as primary sources.
http://www.w3.org/ns/prov#wasQuotedFrom	schoodoodle.com