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 has asked Santa for a sled for Christmas. So he was really hoping it would be a white Christmas. The weatherman was calling for snow when he went to bed. The next morning he woke up to snow on the ground. He had gotten his sled, too.
 selected sentence: The weatherman was calling for snow when he went to bed.

The weatherman looks at the weather patterns >Causes/Enables> The weatherman predicts snow