About: http://webisa.webdatacommons.org/19182235

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	Books bought from the iBooks store are ePubs, and they usually have DRM. To read them in an app other than iBooks will require deDRMing.
http://www.w3.org/ns/prov#wasQuotedFrom	mobileread.com