Ladder(ladder)
| articulated_ladder, companionway, ladder, rope_ladder |
| appearance as argument number 1 |
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| appearance as argument number 2 |
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| antecedent |
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| (=> (instance ?LADDER Ladder) (and (capability MotionUpward instrument ?LADDER) (capability MotionDownward instrument ?LADDER))) |
Mid-level-ontology.kif 16638-16642 | If X is an instance of ladder, then X is capable of doing motion upward as a instrument and X is capable of doing motion downward as a instrument |
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