(subclass ElectricalSignalling Signalling) | Mid-level-ontology.kif 2635-2635 | ElectricalSignalling は Signalling の subclass では %n |
(subclass ElectronicSignalling ElectricalSignalling) | Mid-level-ontology.kif 2647-2647 | ElectronicSignalling は ElectricalSignalling の subclass では %n |