Suppose The Great Wall of China is a series of fortifications made of stone, brick, tamped earth, wood, and other materials, generally built along an east-to-west line across the historical northern borders of China. The Great Wall has been rebuilt, maintained, and enhanced over various dynasties, including the Ming Dynasty (1368–1644).
Can we infer that "The Great Wall of China is a natural geological formation"? Yes, no, or maybe?