Definition: In this task, you will be given a short story. One sentence from the story is chosen. Consider the events that happen before that sentence, or are likely to have happened before it. Does any of them directly cause it, or simply make it possible? You should write your answer in the form " A >causes/enables> B". Try to use phrases and sentences from the story to compose your answer when possible.
Input: story: Amy had been ignoring Ray in class for a week. She hoped this would encourage him to call her. Night after night the phone didn't ring. Amy sat in class sad to have lost his friendship. After class she started to speak, but he walked away quickly.
 selected sentence: Amy sat in class sad to have lost his friendship.

Amy goes to class >Causes/Enables> Amy is in class