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: Marcia was watching her little brother Jon play soccer in the park. Jon tripped and fell on the grass. He got up and limped across the field. Marcia placed her arm around Jon. She nursed Jon's bruised leg.
 selected sentence: She nursed Jon's bruised leg.

Jon falls >Causes/Enables> Marcia nurses Jon