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: Sam hopped into his mail truck and drove off. Sentence2: He was trying to do his route fast to get home early today. Sentence3: He drove so fast he didn't see a pothole in the road. Sentence4: The truck bounced hard when he hit the pothole.

Sam's head hit the steering wheel.