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Term 1: Term 2:

(subclass Reef MaritimeHazard) Weather.kif 965-965 Reef is a subclass of maritime hazard
(subclass Reef LandForm) Geography.kif 5539-5539 Reef is a subclass of land form
(subclass CoralReef Reef) Geography.kif 5576-5576 Coral reef is a subclass of reef

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