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: One day Peter woke up after school had already started. Sentence2: He quickly put on his clothes and went to school. Sentence3: He arrived at school 20 minutes late. Sentence4: Everyone was staring at him as he walked into class.

The classroom erupted in laughter because Peter forgot to wear pants.