Complex sentence: Aunt Ciata was the main creator and organisor of the ranchos of the Saúde area, and was one of those responsible for the change in the nature of the early Carnaval parades.
Split into simpler sentences: Aunt Ciata was the main creator and organisor of the ranchos of the Saúde area. She was one of those responsible for the change in the nature of the early Carnaval parades.