PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The document filed must be a ???return, claim, statement, or other document required to be filed.??? I focus here on the ???required to be filed??? element.
http://www.w3.org/ns/prov#wasQuotedFrom
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