(subclass SpeakerDevice ElectricDevice) | Mid-level-ontology.kif 26022-26022 | 子類 SpeakerDevice and 電器 |
(subclass SpeakerDevice Device) | ComputerInput.kif 475-475 | 子類 SpeakerDevice and Device |
(subclass ElectricSpeakerDevice SpeakerDevice) | ComputerInput.kif 484-484 | 子類 ElectricSpeakerDevice and SpeakerDevice |