(subclass SubmergedLandArea GeographicArea) | Geography.kif 6067-6067 | Submerged land area is a subclass of geographic area |
(subclass MaritimeShelfArea SubmergedLandArea) | Geography.kif 1058-1058 | Maritime shelf area is a subclass of submerged land area |
(subclass ContinentalShelf SubmergedLandArea) | Geography.kif 6081-6081 | Continental shelf is a subclass of submerged land area |
(subclass ContinentalMargin SubmergedLandArea) | Geography.kif 6088-6088 | Continental margin is a subclass of submerged land area |
(subclass SeabedArea SubmergedLandArea) | Geography.kif 6104-6104 | Seabed area is a subclass of submerged land area |