Detailed Instructions: 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.
Q: Nadine's aunt asked her to babysit her cousin. She put him on her lap and sat on a bar-stool. Suddenly, the baby slipped from her arms. He fell and hit his head on the floor. Nadine apologized profusely to her aunt, who said it was okay.
Why did He fall ?
A:
Not Answerable