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: Ben came home late at night. He did not want to wake up his wife. He did not turn on the light. He slipped and fell down. His leg was broken.
 selected sentence: His leg was broken.

Ben falls down >Causes/Enables> Ben breaks his leg