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: Cassidy was riding her bike. She was going down her driveway when she hit a rock. The bike flipped and she fell on the ground. Her mom rushed out to check on her. It turned out that her arm was broken.
 selected sentence: Her mom rushed out to check on her.

Cassidy flipped on her bike >Causes/Enables> Cassidy's mom rushed out to check on her