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: 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 dream I was gliding along on my bike?

Answerable