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: It was sports day at Tim's school. Every sports day, Tim always broke his glasses. He wanted to make it the whole day without breaking them. He decided to lock himself in the lunchroom. That was the first sports day his glasses didn't break.
 selected sentence: He decided to lock himself in the lunchroom.

Tim breaks his glasses during every sports day >Causes/Enables> Tim locks himself in the lunchroom