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: Tom was enemies with another student. They always fought during recess. One day the fight was exhausting for both of them. The looked at each other and laughed. They decided it was worth it to fight ever again.
 selected sentence: One day the fight was exhausting for both of them.

school had recess >Causes/Enables> tom fought with student