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    Bierebo is a dialect network with seven varieties, which are not all mutually intelligible. The names of the dialects correspond to the names of villages where they are spoken, except for Yana, Yakana, and Yaningi (all meaning ‘what?’); these 3 varieties are spoken on the East coast in Lokopui area. The Yana and Yakana varieties are moribund, while the other varieties are fairly stable.