Task: Sentence Ordering
Input (English): Sentence1: She found a cool item and then happily bought it. Sentence2: Sally got them in the mail a few days later. Sentence3: Sally entered a contest online and won some gift cards. Sentence4: She went online and decided what she'd like to buy. Sentence5: The person in charge of prizes got her address and mailed them out.
Output (English): 53142