PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Researchers who use the central correspondence files should understand that they are not limited to letters but also contain other types of documentation, including reports, studies, policy documents, meeting minutes, and memorandums of conversation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • archives.gov