Original sentence: A sad event in the history of Taroudant was  the massacre of its population by  Moulay Ismail in 1687.Citizens formed an alliance with Ahmed ibn Mahrez, a dissedent nephew of Moulay Ismail
Edited sentence: A sad event in the history of Taroudant was  the massacre of its population by Moulay Ismail in 1687.Citizens formed an alliance with Ahmed ibn Mahrez, a dissident nephew of Moulay Ismail