PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Generally, a diffraction grating is an optical component with a regular pattern, which splits and diffracts light into several beams travelling in different directions.
http://www.w3.org/ns/prov#wasQuotedFrom
  • patents.com