(subclass AerobicExerciseDevice RecreationOrExerciseDevice) | Mid-level-ontology.kif 8227-8227 | AerobicExerciseDevice e' uma sub-classe de RecreationOrExerciseDevice |
(subclass RowingMachine AerobicExerciseDevice) | Mid-level-ontology.kif 8236-8236 | RowingMachine e' uma sub-classe de AerobicExerciseDevice |
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