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: Greg wanted to buy a necklace for his mother. He went to many different jewelry stores. He didn't see anything he liked. Finally, he stopped into an antique shop. He found a lovely vintage necklace for his mother.
Why did Greg want to buy a necklace for his mother?

A: Not Answerable
****
Q: I signed up for a billboards tournament. I was in competition against some of the best players in the town. I ended up losing a couple games. I was disappointed that I lost the tournament. I left the building very disappointed.
Why did I sign up?

A: Not Answerable
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Q: I was hungry. I looked in the refrigerator. There was some cold pizza in a box. I looked at the pizza and it was moldy and it smelled funny. I called my favorite takeout restaurant.
Why did I look at the pizza?

A:
Answerable
****