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: David had a favorite shirt. David's friend spilled juice on the shirt. David shouted at his friend. The friend was frightened. David got his friend more juice.
 selected sentence: The friend was frightened.

David shouts at his friend >Causes/Enables> David's friend is frightened