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: David was the best air hockey player in town. He had his own table at home and practiced a lot. One day a boy named Sam came to play with him. Sam beat him by 10 points. David was angry so he punched Sam in the face.
 selected sentence: He had his own table at home and practiced a lot.

Air Hockey becomes an important thing to David >Causes/Enables> He had his own table at home