Instructions: 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: Ivan got bitten by a mosquito on a forest hike. Sentence2: The bite was red and itchy, but it didn't bother him at first. Sentence3: Then it swelled up terribly and became sore. Sentence4: A doctor looked at it and told Ivan the bite was infected!
Output:
Ivan bought mosquito repellent for his next hike.