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: When I was 6 years old, a dog followed me home from school. This dog became my best friend of all time. Her breed was a Boxer, which is a protective, family oriented dog. Unfortunately, Someone stole her from our backyard when I was 12. I will always wonder what happened to Gertrude the Boxer dog.
 selected sentence: This dog became my best friend of all time.

A dog followed me home >Causes/Enables> The dog became my best friend