About: http://webisa.webdatacommons.org/178278830

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The letters are sent to a party who turns them over to other persons as part of a minor service provided in addition to a substantial and independent sales, service, or other business function that party performs for such persons.
http://www.w3.org/ns/prov#wasQuotedFrom	usps.gov