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: Cade can run very fast. He is so fast, he sometimes trips over his own feet. Today, he decides he will run the fastest he's ever run. But his other foot comes out of nowhere, and he falls on his nose. He decides to walk back to his mom.
 selected sentence: But his other foot comes out of nowhere, and he falls on his nose.

cade falls on nose >Causes/Enables> cade walks to mom