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: Ellen had just adopted a little boy named Tony. She wasn't sure what to buy Tony for his first Christmas. Then she had a great gift idea. She bought Tony a brand new bike! She was very happy when Tony said he loved his gift.
 selected sentence: She was very happy when Tony said he loved his gift.

ellen bought tony bike >Causes/Enables> ellen was happy