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: Michelle had a huge stack of books. She needed to return them to the library. She got in her car and drove there. Then, she put her books in the drop box. Then she went home.
 selected sentence: She needed to return them to the library.

Michelle borrows books >Causes/Enables> Michelle needs to return the books