Task: Sentence Ordering
Input (English): Sentence1: The pie is delicious and it has whipped cream on the side. Sentence2: Peter was happy his friend gave him food. Sentence3: Peter's friends invite him for a small Halloween party. Sentence4: A friend offers him a slice of pumpkin pie at the party. Sentence5: He arrives late and hasn't had time to eat dinner.
Output (English): 45132