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: Willy had butterflies in his stomach. The day of the big game had arrived and he was nervous. They jogged out onto the field and the other team was already there. This was going to be a big day. Willy played great and was the mvp.
 selected sentence: Willy had butterflies in his stomach.

Willy is going to participate in a game >Causes/Enables> Willy has butterflies in his stomach