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No TPTP formula. May not be expressible in strict first order. Mid-level-ontology.kif 15250-15250 Transitway obstacle is a subclass of object
No TPTP formula. May not be expressible in strict first order. Transportation.kif 3065-3065 Dam is a subclass of transitway obstacle
No TPTP formula. May not be expressible in strict first order. Transportation.kif 3071-3071 Canal lock gate is a subclass of transitway obstacle
No TPTP formula. May not be expressible in strict first order. Mid-level-ontology.kif 15255-15255 Door is a subclass of transitway obstacle


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