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: Oliver took the salt from the kitchen. Sentence2: He brought it to his room. Sentence3: Then, he turned it upside down. Sentence4: Salt spilled everywhere.

His mom had to clean it up.