PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For example, such optical components may include filters, such as colored glass, interference or neutral density filters, e.g. for blocking out or passing specific wavelengths of light, attenuators for reducing optical power to a desired range, polarizers for controlling the polarization of light, and isolators for preventing back reflections and other noise from reaching sensitive optical compone
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com