About: http://webisa.webdatacommons.org/50185786

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	CDH's Letter Cache - letters to all kinds of people including presidents!
http://www.w3.org/ns/prov#wasQuotedFrom	crrange.com