(subclass Tremor Rotating) | Mid-level-ontology.kif 17485-17485 | Tremor is a subclass of rotating |
(subclass Trembling Tremor) | Mid-level-ontology.kif 20009-20009 | Trembling is a subclass of tremor |
(subclass EarthTremor Tremor) | Geography.kif 2319-2319 | Earth tremor is a subclass of tremor |