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: The girl stood up. She bumped her head on Something. She sat back down. Her head was bleeding. Her friend ran to get help.
 selected sentence: Her head was bleeding.

The girl bumps her head >Causes/Enables> Her head is bleeding