Suppose The Harry Potter series, written by J.K. Rowling, follows the story of a young wizard, Harry Potter, and his friends as they navigate the magical world and battle the dark wizard, Lord Voldemort. The series has become one of the best-selling book series in history, with millions of copies sold worldwide and a dedicated fan base.
Can we infer that "The Harry Potter series was a commercial failure."? Yes, no, or maybe?