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: The delivery man handed a package to me. Sentence2: I opened the box. Sentence3: Since nothing was inside, I tried shouting at the delivery man. Sentence4: He couldn't hear me and drove off.

I had to call to find out what was going on.