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: A group of parents waited at the corner for the school bus to arrive. They saw the school bus coming down the street. The school bus stopped in front of the parents. The doors opened. All the school children got off of the bus and hugged their parents.
 selected sentence: The school bus stopped in front of the parents.

The parents wait for the school bus >Causes/Enables> The school bus stops in front of the parents