Input (grade 9): Kaufman (2001, p. 4) Other nearby centers such as Cholula, Xochicalco, and Cacaxtla attempted to fill the power void left by Teotihuacan's decline.
Output (grade 4): Kaufman (2001, p. 4) Other cities nearby tried to take the position of Teotihuacán. They tried to fill the power vacuum left by Teotihuacán's decline.