Suppose The Great Barrier Reef is the world's largest coral reef system, located off the coast of Queensland, Australia. It is home to a wide variety of marine life, including over 2,900 individual reefs and 900 islands. The Great Barrier Reef Marine Park Authority manages the reef and works to protect its natural values.
Can we infer that "The Great Barrier Reef is man-made"? Yes, no, or maybe?