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: Tom and Chris were best friends. They enjoyed skating together. They decided to visit a lake. The lake was frozen over since it was very cold. They decided to ice skate across the lake for fun.
Why did They decide to visit a lake?

Answerable