Definition: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
Input: Sentence1: Sally entered a contest online and won some gift cards. Sentence2: The person in charge of prizes got her address and mailed them out. Sentence3: Sally got them in the mail a few days later. Sentence4: She went online and decided what she'd like to buy.

She found a cool item and then happily bought it.