(subclass ArtificialLanguage Language) | Merge.kif 1429-1429 | Artificial language is a subclass of language |
(subclass ComputerLanguage ArtificialLanguage) | Merge.kif 1434-1434 | Computer language is a subclass of artificial language |
(subclass ConstructedLanguage ArtificialLanguage) | Merge.kif 1461-1461 | Constructed language is a subclass of artificial language |