(subclass ACPowerSource PowerSource) | Mid-level-ontology.kif 26355-26355 | Ac power source is a subclass of power source |
(subclass SinglePhasePowerSource ACPowerSource) | Mid-level-ontology.kif 26360-26360 | Single phase power source is a subclass of ac power source |
(subclass ThreePhasePowerSource ACPowerSource) | Mid-level-ontology.kif 26361-26361 | Three phase power source is a subclass of ac power source |