Quota for Gbaya-Manza-Ngbaka (gbay1279)
Atlantic-Congo (atla1278) > Volta-Congo (volt1241) > North Volta-Congo (nort3149) > Gbaya-Manza-Ngbaka (gbay1279)
Total langs: 14
Known tonal: 14
Known non-tonal: 0
Estimated tonal: 14
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