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: Skylar would always get picked on by a bully in his school. One day came and Skylar couldn't take it anymore. He stood up to his bully and got into a fight with him. The principal came in a separated them. Skylar was never bullied again.
 selected sentence: He stood up to his bully and got into a fight with him.

The bully picks on Skylar until Skylar can't take it anymore >Causes/Enables> Skylar stands up to the bully