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: It was the first cold day of the winter. Jane wore her glasses on her walk to school. When she entered the building they fogged over. She had no idea that would happen. She laughed as she cleaned the fog off with her shirt.
 selected sentence: She laughed as she cleaned the fog off with her shirt.

Jane's glasses fog over >Causes/Enables> She cleans them with her shirt