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: There was a little boy who had a puppy. He and the puppy were the best of friends. One day, the little boy left the gate open, and the puppy ran away! The little boy asked his parents to help him find his friend. They found the puppy across the street, playing in some bushes.
 selected sentence: The little boy asked his parents to help him find his friend.

A little boy lost his friend >Causes/Enables> The little boy asked his parents to help him find his friend 