About: http://webisa.webdatacommons.org/158781371

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	When the G.I.s returned from World War II the trading stamps business took off when numerous third-party companies created their own trading stamp programs to offer to supermarkets and other retailers.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org