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: It had been raining for days. Sentence2: The sky had stayed dark and gloomy. Sentence3: All of a sudden the sun came out. Sentence4: The sky turned blue.

There was a rainbow in sky.