Suppose The Great Wall of China is a series of fortifications made of stone, brick, tamped earth, wood, and other materials. It was built to protect the Chinese states and empires against the invasions and raids of the various nomadic groups of the Eurasian Steppe. The Great Wall stretches more than 13,000 miles.
Can we infer that "The Great Wall of China was built to separate China from Mongolia"? Yes, no, or maybe?