TASK 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.
PROBLEM: Last night I had a dream about biking. I used to bike before I had a stroke in 2011. I can hardly walk, let alone bike. I dreamed I was gliding along on my bike. I woke up, bitterly disappointed.
Why did I use to bike?

SOLUTION: Answerable

PROBLEM: Sarah and John went to their lunch period together. They got on line and picked out their food. Sarah patted her pocket and realized she forgot her lunch money! John smiled and gave her the money for her lunch. Sarah thanked him profusely and they enjoyed their lunch together!
Why did John smile ?

SOLUTION: Answerable

PROBLEM: Karen wanted to go on a trip to France. She started doing research on the trip. She decided to book a week long trip. She left the next day for her trip. She had the best time ever on her trip.
Why did She leave the next day?

SOLUTION:
Answerable