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 celebrated the new year. He had a really great party. It hit him he needed a new calendar. The next day he bought one on the way to work. He was so excited for it.
 selected sentence: Billy celebrated the new year.

It is New Years Day >Causes/Enables> Billy celebrates the new year