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: Ed whistled a popular tune as he worked at his desk job. After a while one of his co-workers joined in. The two of them whistled so loud that the whole office heard. Ed and his co-worker were cheered when the song ended. Ed told his co-worker that next week they should perform again!
 selected sentence: Ed and his co-worker were cheered when the song ended.

Ed and his co-worker whistle for the office >Causes/Enables> Co-workers cheer for them