PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In particular, there is now discussion about DRM systems and the legislation surrounding them, which could develop into very dangerous laws making it impossible for a libre software system to handle content such as e-books, movies, and music.
http://www.w3.org/ns/prov#wasQuotedFrom
  • oreilly.com