Complex sentence: Afar society has traditionally been organized into independent kingdoms, each ruled by its own Sultan or sultanate, such as Sultanate of Awsa, Sultanate of Girrifo, Sultanate of Dawe, Sultanate of Tadjourah, Sultanate of Rahaito and Sultanate of Goobad.
Split into simpler sentences: Afar society has traditionally been organized into independent kingdoms, each ruled by its own Sultan. Among these were the Sultanate of Awsa, Sultanate of Girrifo, Sultanate of Dawe, Sultanate of Tadjourah, Sultanate of Rahaito and Sultanate of Goobad.