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: Hannah dumped her boyfriend before she left school. While she was riding the bus home, he followed the bus with his car. In addition, he tried to drive around her when she got out of the bus. Hannah was furious and threatened him. As soon as she started to call the cops, he left.
 selected sentence: Hannah dumped her boyfriend before she left school.

Hannah doesn't like her boyfriend >Causes/Enables> Hannah dumps her boyfriend