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: Bob traveled to 50 different beaches. Sentence2: At each beach he collected sand. Sentence3: When he got home he put the same in smaller bottles. Sentence4: Bob sold the exotic sand collections online.

He made a fortune over the years doing this.