(subclass Clock MeasuringDevice) | Mid-level-ontology.kif 2882-2882 | Clock は MeasuringDevice の subclass では %n |
(subclass WatchClock Clock) | Mid-level-ontology.kif 2894-2894 | WatchClock は Clock の subclass では %n |
(subclass AlarmClock Clock) | Mid-level-ontology.kif 25525-25525 | AlarmClock は Clock の subclass では %n |