About: http://webisa.webdatacommons.org/20514306

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	Many publishers simply will not distribute to an ebookstore that lacks DRM, with some even going so far as to question the security of new types of DRM (like the custom DRM used by Oyster).
http://www.w3.org/ns/prov#wasQuotedFrom	the-digital-reader.com