(subclass ShoreArea LandArea) | Merge.kif 14168-14168 | Shore area is a subclass of land area |
(subclass RiverBank ShoreArea) | Geography.kif 5756-5756 | River bank is a subclass of shore area |
(subclass Seacoast ShoreArea) | Geography.kif 6119-6119 | Seacoast is a subclass of shore area |