Definition: 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.
Input: Billy decided he wanted to make a robot. He worked for many months to get it just right. Once finished, he wanted to show it off. Billy took the robot to school to show his friends and teachers. When he turned the robot on, it exploded in flames.
Why did Billy decide he wanted to make a robot?

Answerable