Task: Sentence Ordering
Input (English): Sentence1: Peter was happy his friend gave him food. Sentence2: He arrives late and hasn't had time to eat dinner. Sentence3: The pie is delicious and it has whipped cream on the side. Sentence4: Peter's friends invite him for a small Halloween party. Sentence5: A friend offers him a slice of pumpkin pie at the party.
Output (English): 52413