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: Jim lost his hat at the train station. He put up posters of his hat. After a week, someone called Jim. She had found his hat on a bench. She returned it him and he bought her dinner to say thank you.
Why did He put up?

Answerable