Definition: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
Input: Sentence1: Susan received a new bicycle for Christmas. Sentence2: She didn't know how to ride it without training wheels. Sentence3: Her mother held the back of her bike as she pushed Susan. Sentence4: Susan's mother let go of the bicycle.

Susan crashed and skinned her knee.