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Term 1: Term 2:

(subclass LowlandArea LandForm) Geography.kif 3984-3984 LowlandArea est une sous-classe de LandForm
(subclass Plain LowlandArea) Geography.kif 4218-4218 Plain est une sous-classe de LowlandArea
(subclass Valley LowlandArea) Geography.kif 4227-4227 Valley est une sous-classe de LowlandArea


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