Task: Sentence Ordering
Input (English): Sentence1: He did a lot of research on the most economical cars to buy. Sentence2: Jim's car was ten Year's old, and started having problems. Sentence3: Jim saved a lot of money in gas by buying a battery run car. Sentence4: He decided on one that could also run on a battery. Sentence5: He decided to trade it in and buy a new one.
Output (English): 31542