Task: Sentence Ordering
Input (English): Sentence1: Grayson has collected stamps since he was a little kid. Sentence2: He thinks of his stamp collection. Sentence3: He gets much less for them than they are worth. Sentence4: Sadly, he takes them into a pawn shop for sale. Sentence5: Now Grayson needs some money to help pay his rent.
Output (English): 13542