Nwari
Nzerem
Obaku
Obazu
Obeaka
Obegi
Obeke
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Obiohoro Osu
Obiohuru
Obizi
Oboama
Oboama-Nguru
Obodo
Obofia
Obogwe
Obohia
Oboku-Avu
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Obolo
Obor
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Obor Ovoro
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Obudi-Agwa
Obufie-Mmahu
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