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| AerobicExerciseDevice(aerobic exercise device) |
| appearance as argument number 1 |
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| (subclass AerobicExerciseDevice RecreationOrExerciseDevice) | Mid-level-ontology.kif 9549-9549 | Aerobic exercise device is a subclass of recreation or exercise device |
| (documentation AerobicExerciseDevice EnglishLanguage "An RecreationOrExerciseDevice whose purpose is to develop the cardiovascular system.") | Mid-level-ontology.kif 9550-9551 | Aerobic exercise device is a subclass of recreation or exercise device |
| appearance as argument number 2 |
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| consequent |
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| (=> (instance ?X ExerciseCenter) (hasPurpose ?X (exists (?DEVICE) (and (or (instance ?DEVICE AerobicExerciseDevice) (instance ?DEVICE AnaerobicExerciseDevice)) (located ?DEVICE ?X))))) |
Mid-level-ontology.kif 29363-29371 | If X is an instance of exercise center, then X has the purpose there exists Y such that Y is an instance of aerobic exercise device or Y is an instance of anaerobic exercise device and Y is located at X |