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: Kelly went to the bowling alley. Sentence2: She picked up the ball and started rolling. Sentence3: Unfortunately on the next try she dropped it. Sentence4: The bowl dropped on her toe.

Kelly had to stop.