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: My next door neighbors have moved away. They had been my friends for many years. I am sad to lose them. The new neighbors are moving in this weekend. I hope I make new friends.
 selected sentence: They had been my friends for many years.

They were my neighbors. >Causes/Enables> They had been my friends for many years.