PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Personal and political papers including general, political, and constituent correspondence, legislative files, committee files, reports, invitations, speeches, news articles, press releases, schedules, campaign records, voting records, scrapbooks, photographs (30 linear feet), and 204 cassettes, films, records, and tapes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • congress.gov