Input (grade 11): The Cordillera Central ("Central mountain chain") is found in the southern part of the province, and the Sierra Samba (a chain of low hills) runs across the northern half.
Output (grade 12): The Cordillera Central ("Central mountain chain") is found in the southern part of the province, and the Sierra Samba (or Sierra Zamba), a chain of low hills, runs across the northern half.