Input (grade 13): The Emperors became figureheads, controlled by warlords like Ras Mikael Sehul of Tigray, and by the Oromo Yejju dynasty, which later led to 17th century Oromo rule of Gondar, changing the language of the court from Amharic to Afaan Oromo.
Output (grade 8): The Emperors became figureheads, controlled by warlords like Ras Mikael Sehul of Tigray.