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: Mark was friends with a blacksmith. He kept all scrap metal that he came across to give his friend. When Mark filled a garbage can with scrap he called the friend. The friend came over and took the can of metal. He made mark a metal sculpture as a thank you gesture.
Why did He keep all scrap metal?

Answerable