(subclass Loudspeaker ElectricSpeakerDevice) | ComputerInput.kif 496-496 | Loudspeaker e' uma sub-classe de ElectricSpeakerDevice |
(subclass ComputerLoudspeaker Loudspeaker) | ComputerInput.kif 519-519 | ComputerLoudspeaker e' uma sub-classe de Loudspeaker |