PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • On March 26, 2009, AT&T in the United States began selling the iPhone without a contract, though still SIM-locked to their network.[251] The up-front purchase price of such iPhone units is often twice as expensive as those bundled with contracts.[252] Outside of the United States, policies differ, especially in US territories and insular areas like Guam, where GTA TeleGuam is the exclusive carrier
http://www.w3.org/ns/prov#wasQuotedFrom
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