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 tried listening to her headphones when she woke up >Causes/Enables> The headphones didn't work on both sides