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: Mary had a dog and a cat. The dog got sick. Mary decided to take him to the vet. The vet said the dog needed to take some pills. Mary bought the pills and returned home.
 selected sentence: Mary had a dog and a cat.

Mary gets a dog >Causes/Enables> Mary has a dog