About: http://webisa.webdatacommons.org/143127138

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	And since Apple does not permit third parties to use its payments system, except on the App Store, your payment for that Amazon e-book will certainly use some in-app payment system other than Apple???s.
http://www.w3.org/ns/prov#wasQuotedFrom	macobserver.com