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Term 1: Term 2:

(subclass AerobicExerciseDevice RecreationOrExerciseDevice) Mid-level-ontology.kif 8228-8228 Aerobic exercise device is a subclass of recreation or exercise device
(subclass RowingMachine AerobicExerciseDevice) Mid-level-ontology.kif 8237-8237 Ergometer is a subclass of aerobic exercise device


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