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: Alex was usually in the front of the line in class. Sentence2: One day the teacher reversed the order. Sentence3: Since Z was in front A was in back. Sentence4: Alex was shocked to be the last one in line.

He finally understood how the other kids felt.