Task: Sentence Ordering
Input (English): Sentence1: Now Grayson needs some money to help pay his rent. Sentence2: He thinks of his stamp collection. Sentence3: Grayson has collected stamps since he was a little kid. Sentence4: He gets much less for them than they are worth. Sentence5: Sadly, he takes them into a pawn shop for sale.
Output (English): 23154