 However, there is some doubt that a true stop can be made by this gesture due to gaps between the incisors, which are filed to points by the Teke people and would allow air to flow during the occlusion; this is particularly pertinent considering that one of the words with this consonant, , means a 'gap between filed incisors'.Because of these factors, Teke might be better characterized as a labiodental nasal approximant ( in IPA), rather than a nasal occlusive.Given its rarity, it is worth providing some minimal pairs with other consonants