In this task, you will be given a short story. One sentence from the story is chosen. Consider the events that happen after that sentence. Is any of them directly caused by it, or is made possible by it? 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. Do not change the main selected sentence in your answer.
Q: story: Bob went out of town. He left his dogs at his house. Someone had been by to check on them. But then bob got back. He found that one of his dogs had broken its tail.
 selected sentence: But then bob got back.
A: 
Bob comes home >Causes/Enables> Bob sees his dog