Task: Sentence Ordering
Input (English): Sentence1: She went online and decided what she'd like to buy. Sentence2: The person in charge of prizes got her address and mailed them out. Sentence3: She found a cool item and then happily bought it. Sentence4: Sally got them in the mail a few days later. Sentence5: Sally entered a contest online and won some gift cards.
Output (English): 42531