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: Sue's birthday was coming up. She wondered if anyone else at work knew. On her birthday, her co-workers surprised her with a birthday cake. They sang happy birthday and everyone ate cake. Sue was happy that her co-workers had celebrated with her.
Why was Sue happy that her co - workers had celebrated with her?

Answerable