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: Mark had just taken a test. He was nervous about his grade. He thought about it until he got his score the following week. He had gotten an A! Mark went out to celebrate.
 selected sentence: Mark had just taken a test.

Mark had just taken a test >Causes/Enables> He was nervous about his grade.