About: http://webisa.webdatacommons.org/63918944

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	materials, including related correspondence and memoranda, notes, and some drafts possibly used in his writings; speeches,
http://www.w3.org/ns/prov#wasQuotedFrom	cdlib.org