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: Harry was doing his homework but had trouble with math. Sentence2: He decided to look for help on Youtube. Sentence3: After doing a few lessons, he saw an interesting video. Sentence4: The video was exciting and so he decided to watch another.

Harry finally overcame the distraction and returned to his math.