A number of those languages are not in mutually exclusive categories. Take Chinese, for instance, we have Mandarin and Cantonese listed separately while having

A number of those languages are not in mutually exclusive categories. Take Chinese, for instance, we have Mandarin and Cantonese listed separately while having another category called Chinese. As a Cushite, I also know we do not have a language called Cushite. What we have, instead, are Somali, Oromo and other similar but not mutually intelligible languages. Also, we do not have a language called Sudanese - it should have been Arabic, I believe.