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 man was having a panic attack. Sentence2: His friend suggested to simply start singing. Sentence3: The man began singing and calmed down. Sentence4: He learned a new relaxation technique.

He never had a panic attack again.