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: Billy decided he wanted to make a robot. He worked for many months to get it just right. Once finished, he wanted to show it off. Billy took the robot to school to show his friends and teachers. When he turned the robot on, it exploded in flames.
 selected sentence: Billy took the robot to school to show his friends and teachers.

Billy builds a robot >Causes/Enables> Billy shows the robot to his friends