PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A digital book or e-book is a digital form of a regular book that can be downloaded to a reading device such as the Apple iPad, Amazon Kindle, Barnes & Noble Nook, and more.
http://www.w3.org/ns/prov#wasQuotedFrom
  • internetsafetyproject.org