(subclass Volcano LandForm) | Geography.kif 4057-4057 | Volcano は LandForm の subclass では %n |
(subclass VolcanicMountain Volcano) | Geography.kif 4079-4079 | VolcanicMountain は Volcano の subclass では %n |
(subclass VolcanicCone Volcano) | Geography.kif 4086-4086 | VolcanicCone は Volcano の subclass では %n |