PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Another advantage is the optical coupling between the light source and the waveguide material in particular when the light source is a light emitting diode.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com