Suppose The Amazon Rainforest covers most of the Amazon Basin in South America. This basin encompasses 7,000,000 square kilometers (2,700,000 sq mi), of which 5,500,000 square kilometers (2,100,000 sq mi) are covered by the rainforest.
Can we infer that "The Amazon Rainforest is the largest rainforest in the world"? Yes, no, or maybe?