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: Anna was given her cousin's hamster when her cousin got sick of it. She decided to give it a bigger tank and a happier home. The first thing she did was get it an exercise wheel. Immediately, the hamster started running on it happily. Anna was glad she'd given the hamster some entertainment!
 selected sentence: Immediately, the hamster started running on it happily.

Anna gets an exercise wheel for her hamster >Causes/Enables> The hamster runs on it