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: Mike was very in love with his girlfriend. Sentence2: He had a strong desire to marry his girlfriend. Sentence3: Sadly he didn't have enough money to purchase the ring. Sentence4: Mike waited, did his research and found the ring he wanted.

He decided to buy the ring with his tax refund.