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: Gina was chasing a boy around the class to get her pencil back. But he was too fast for her. Her friend Tami joined in the chase. The two girls were no match for the thin tall boy. Gina realized they needed to come up with a plan to catch the boy.
 selected sentence: Gina was chasing a boy around the class to get her pencil back.

A boy took Gina's pencil >Causes/Enables> Gina chased the boy