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: A farmer woke up one morning, and found his pigs had gone missing. Sentence2: He asked his wife is she had taken them to town, and she denied it. Sentence3: He spent the day looking for the pigs,  he even checked other farms! Sentence4: At the end of the day, he went back into the barn to check again.

It turned out, the pigs had been left in the stables by mistake!