PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • If there were to be a non-exclusive list of verification methods, commenters expressed a range of views on what should be included in such a list, such as verification by certain third parties or through tax returns and third-party documentary proof such as Forms W-2, Forms 1099, bank statements, brokerage account statements, tax assessment valuations and appraisal reports.
http://www.w3.org/ns/prov#wasQuotedFrom
  • federalregister.gov