. "Unclassified language#Hamba" . . "Unclassified" . "classified" . "Unclassified language#Okwa" . "not been classified" . "unclassifiable" . . "unclassified language" . "Unclassified language" . "Unattested" . "unattested" . "yet to be classified" . "further classification remains uncertain" . . "unclassified" . "prevented scholars from determining" . "too poorly attested to classify" . . . . . "Nothing is known about" . . "Unclassified language" . "not definitively classified" .