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: My sister was sleeping on her bed. The headphones from her ear suddenly fell off. She ended up rolling on one side of the headphones. When she woke up, she tried to listen to music with it. Only one side was working properly.
 selected sentence: When she woke up, she tried to listen to music with it.

My sister was sleeping on her headphones >Causes/Enables> My sister tried to listen to her headphones when she woke up