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: Juan was having a terrible day at work. Customers were complaining about the lack of open registers. But there was nothing he could do about it. During break time, Juan yelled at his boss. He was immediately fired.
 selected sentence: During break time, Juan yelled at his boss.

Juan gets mad >Causes/Enables> Juan yells