| TransitwayObstacle(transitway obstacle) | 
| appearance as argument number 1 | 
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| (documentation TransitwayObstacle EnglishLanguage "TransitwayObstacle is the general class of Objects that can act as obstacles to Motion along a Transitway.") | Mid-level-ontology.kif 16613-16615 | |
| (subclass TransitwayObstacle Object) | Mid-level-ontology.kif 16612-16612 | Transitway obstacle is a subclass of object | 
| appearance as argument number 2 | 
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| (subclass CanalLockGate TransitwayObstacle) | Transportation.kif 3973-3973 | Canal lock gate is a subclass of transitway obstacle | 
| (subclass Dam TransitwayObstacle) | Transportation.kif 3967-3967 | Dam is a subclass of transitway obstacle | 
| (subclass Door TransitwayObstacle) | Mid-level-ontology.kif 16617-16617 | Door is a subclass of transitway obstacle | 
| (termFormat ChineseLanguage TransitwayObstacle "过境障碍") | domainEnglishFormat.kif 58911-58911 | Door is a subclass of transitway obstacle | 
| (termFormat ChineseTraditionalLanguage TransitwayObstacle "過境障礙") | domainEnglishFormat.kif 58910-58910 | Door is a subclass of transitway obstacle | 
| (termFormat EnglishLanguage TransitwayObstacle "transitway obstacle") | domainEnglishFormat.kif 58909-58909 | Door is a subclass of transitway obstacle | 
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