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: Jamie was riding her horse in the woods one day. A snack came out of the brush and scared the horse. The horse threw Jamie from the saddle and she broke her arm. Jamie had to wait for her arm to heal and was unable to ride. After several weeks Jamie was back to riding her horse.
 selected sentence: Jamie had to wait for her arm to heal and was unable to ride.

Jamie breaks her arm >Causes/Enables> Jamie is unable to ride