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: I gave Hannah a poem in our class. She took it and decided to read it. After she read it, she had an angry look on her face. She stood up and walked to the garbage can. I had to stop her before she threw it away.
 selected sentence: I had to stop her before she threw it away.

I gave a poem to Hannah >Causes/Enables> She tried to throw it in the trash