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: Cory had his first track meet today. Cory had only been on the track team for a few weeks. He ran laps every day with his friends. He still wasn't sure how his performance would compare. Cory did much better than he expected.
 selected sentence: He still wasn't sure how his performance would compare.

Cory has his first track meet >Causes/Enables> Cory doesn't know how his performance would compare