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: Tim was riding his bike to school one day. He was going very fast and didn't see a crack in the sidewalk. He ran it over and flipped his bike and fell off. He got up and brushed himself off. Tim slowed down and paid more attention the rest of the way.
 selected sentence: He was going very fast and didn't see a crack in the sidewalk.

He rides his bike >Causes/Enables> He goes very fast