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: Kristina needed to change a lightbulb in her house. She stood on a chair to change it. Suddenly, the chair broke beneath her. She fell and hurt her back. Now she uses a step ladder instead of a chair when she needs to.
Why did She fall ?

Answerable