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: Dean was estranged from his family. Sentence2: One day his brother showed up. Sentence3: They went on a trip together. Sentence4: They were looking for their dad.

After a long time they finally found him.