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.
--------
Question: Rob has a doctorate in finance. He was a professor for a university in Ohio for several years. Rob felt he was underpaid. Rob requested a raise from the university, but was denied. Rob is now a professor in Indiana.
Why was He a professor for a university in Ohio?

Answer: Not Answerable

Question: Ana was playing in the snow with her brother. They were having a snowball fight. Suddenly, Anna felt a pain in her cheek. She saw that the snowball had had a rock in it. Her brother apologized and they quit fighting.
Why did She see that the snowball had had a rock in it?

Answer: Answerable

Question: Tony needed to buy his grandma a birthday present. He went to her favorite bakery. They were sold out of her favorite cake. The owner told Tony how to make it himself. His elated grandma couldn't tell the difference!
Why did Tony need to buy his grandma a birthday present?

Answer:
Not Answerable