| NorthCentralBirdsHeadLanguage(north central birds head language) |
| appearance as argument number 1 |
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| (subclass NorthCentralBirdsHeadLanguage BirdsHeadLanguage) | Languages.kif 13671-13671 | North central birds head language is a subclass of birds head language |
| (documentation NorthCentralBirdsHeadLanguage EnglishLanguage "Of the eight BirdsHeadLanguages, three related languages are classified as a NorthCentralBirdsHeadLanguage.(extract from http:/ / www.ethnologue.com/ )") | Languages.kif 13672-13674 | North central birds head language is a subclass of birds head language |
| appearance as argument number 2 |
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