Complex sentence: Today Abakaliki people are mostly known to include Izzi, Ezza, Ikwo and Ngbo clans grouped under one Cultural group but, the Main Abakaliki (Aba Nkaleke) are The Izzi's.
Split into simpler sentences: Today Abakaliki people are mostly known to include Izzi, Ezza, Ikwo and Ngbo clans grouped under one cultural group. But the Main Abakaliki (Aba Nkaleke) are The Izzi's.