PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Optical glass is a kind of glass that has particular requirements on refractive index, dispersion, transmittance, spectral transmittance, light absorption and other optical characteristics, and features homogeneous optical properties.
http://www.w3.org/ns/prov#wasQuotedFrom
  • prweb.com