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: Andrew's pet parakeet ran out food. So Andrew went to the pet store to get food for his bird. He bought bird food and drove home to feed it. He fed his pet bird. Andrew's pet now had food.
 selected sentence: He bought bird food and drove home to feed it.

Andrew's parakeet runs out of food >Causes/Enables> He buys bird food