PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Further, the light emitting device, the light receiving device (O/E converter), the optical converter, etc., are respectively semiconductor devices such as a semiconductor laser, a PIN photodiode, a semiconductor optical amplifier, etc., in the above-discussed embodiments, but they are not limited to semiconductor devices.
http://www.w3.org/ns/prov#wasQuotedFrom
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