About: http://webisa.webdatacommons.org/254240630

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	Together, these libraries house more than 400 million pages of letters, diaries, speeches, memos, and other documents, as well as photographs, film, and audiotape.
http://www.w3.org/ns/prov#wasQuotedFrom	archives.gov