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: Burke doesn't have many friends. Sentence2: He always walks around with a scowl on his face. Sentence3: One day, a stranger tells him that he should smile more. Sentence4: Burke decides to try smiling.

Burke soon reverts back to being grumpy.