(subclass TwoStrokeEngine IntermittentCombustionEngine) | Cars.kif 240-240 | TwoStrokeEngine e' uma sub-classe de IntermittentCombustionEngine |
(subclass SeagullOutboard TwoStrokeEngine) | Cars.kif 4736-4736 | SeagullOutboard e' uma sub-classe de TwoStrokeEngine |