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: Sally couldn't wait to go trick or treating. Sentence2: She constantly asked her mom when it would be time to go. Sentence3: Sally started to get impatient and kept bugging her mom. Sentence4: Mom finally gave the OK to go trick or treating.

Sally spent the next 2 hours trick or treating.