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: John wanted to learn how to play the violin. He went to the music store to buy one. He selected a cheap model that he thought would do for a beginner. He started practicing and two strings broke right away. John went back to the store and bought a better violin.
 selected sentence: John went back to the store and bought a better violin.

John's violin breaks >Causes/Enables> John buys a better violin