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: Kris decided to play a prank on his friend. Sentence2: Kris decided to buy as much toilet paper as he could. Sentence3: Him and a friend covered his other friends house in toilet paper. Sentence4: Kris thought it was funny.

Kris upset the friend whose house he covered in toilet paper.