(subclass NaturalLanguage HumanLanguage) | Merge.kif 1477-1477 | 子類 NaturalLanguage and HumanLanguage |
(subclass LanguageFamily NaturalLanguage) | Languages.kif 12647-12647 | 子類 LanguageFamily and NaturalLanguage |
(subclass ChineseLanguage NaturalLanguage) | Languages.kif 14594-14594 | 子類 ChineseLanguage and NaturalLanguage |