Linguist H. Fleming proposed that the near-extinct Ongota language is a separate branch of Afroasiatic; however, this is only one of several competing theories.
lˈɪŋɡwɪst ˈeɪtʃ. flˈɛmɪŋ pɹəpˈoʊzd ðætðə nˌɪɹɛkstˈɪŋkt ɑːŋɡˈoʊɾə lˈæŋɡwɪdʒ ɪz ɐ sˈɛpɹət bɹˈæntʃ ʌv ˌæfɹoʊˌeɪsɪˈæɾɪk; haʊˈɛvɚ, ðɪs ɪz ˈoʊnli wˈʌn ʌv sˈɛvɹəl kəmpˈiːɾɪŋ θˈiəɹiz.