Fix the grammar mistakes: The Inner Mongolian independence movement, also known as the Southern Mongolian independence movement, is a movement for the independence of Inner Mongolia (also known as Southern Mongolia) and the political separation of Inner Mongolia from the People's Republic of China.
The Inner Mongolian independence movement, also known as the Southern Mongolian independence movement, is a movement for the independence of Inner Mongolia (also known as Southern Mongolia) and the political separation of Inner Mongolia from the People's Republic of China.