(subclass ACPowerSource PowerSource) | Mid-level-ontology.kif 28254-28254 | Ac power source is a subclass of power source |
(subclass SinglePhasePowerSource ACPowerSource) | Mid-level-ontology.kif 28259-28259 | Single phase power source is a subclass of ac power source |
(subclass ThreePhasePowerSource ACPowerSource) | Mid-level-ontology.kif 28260-28260 | Three phase power source is a subclass of ac power source |
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