PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The present invention is a simple and economical method for manufacturing high-performance rear projection screens with internal reflection, and such projection screens.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com