About: http://webisa.webdatacommons.org/64633444

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	His collection includes other letters written by former presidents, including George Washington, James Madison and Thomas Jefferson.
http://www.w3.org/ns/prov#wasQuotedFrom	go.com