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: Ted wanted a goldfish pet for his birthday. He asked his parents if he could have one. Ted's parents said no to Ted. Ted came home from school on his birthday to a goldfish. He was very happy with his parents' surprise.
 selected sentence: He was very happy with his parents' surprise.

Ted's parents surprise him with a goldfish >Causes/Enables> He is happy