PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Records such as receipts, canceled checks, and other documents that prove an item of income or a deduction appearing on your return should be kept at least until the statute of limitations expires for that return.
http://www.w3.org/ns/prov#wasQuotedFrom
  • protax.com