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: Sam was walking his dog. All of a sudden a loud sound scared the dog. It ran away. Sam looked for hours before going home Sam's dog was at home waiting for him.
 selected sentence: Sam looked for hours before going home

Sam loses the dog >Causes/Enables> Sam looks for the dog