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: I was sentenced to prison for murdering my wife. Sentence2: Prison was scary and I cried every day. Sentence3: Eventually, I joined a prison gang. Sentence4: They became my best friends.

I realized that prison was actually fun!