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 bought a new motorcycle. Sentence2: He tried to leave the car dealership, but he didn't know how to drive. Sentence3: The salesman had to show him the throttle, steering, etc. Sentence4: Finally, Sam was ready to leave the lot.

He pulled out and promptly fell into a ditch.