Given the task definition and input, reply with output. In this task you are given a story and a question regarding that story. You must judge whether the question is answerable based on the info given to you. Label the instances as "Answerable" or "Not Answerable" based on your judgment. the story and the question are separated by a new line character.

John's friend told him that reading would make him smarter. John asked if reading any material would be effective. John's friend said that not all reading material was beneficial. John decided to study the works of the greatest leaders of all time. John felt smarter after studying the works of those leaders.
Why did John decide to study the works of the greatest leaders of all time?

Answerable