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: Ryan used to work for mall security. Sentence2: He often worked the night shift. Sentence3: One day, he saw a raccoon in the mall. Sentence4: He stared at it for hours until it left.

Ryan decided his job was rather dull.