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: My son started a new school last week. He is having a tough time there. There a few kids who are bullying him. At his last school he had a lot of friends. I hope it works out for him.
 selected sentence: He is having a tough time there.

Kids are bullying my son at school >Causes/Enables> My son is having a hard time at school