Suppose Harry Potter and the Philosopher's Stone is the first novel in the Harry Potter series written by J.K. Rowling. It was released in 1997 and follows the story of a young wizard, Harry Potter, and his friends Hermione Granger and Ron Weasley as they attend Hogwarts School of Witchcraft and Wizardry.
Can we infer that "J.K. Rowling wrote only one novel in the Harry Potter series."? Yes, no, or maybe?