Instructions: In this task, you're given a review from Amazon. Your task is to generate a rating for the product on a scale of 1-5 based on the review. The rating means 1: extremely poor, 2: poor, 3: neutral, 4: good, 5: extremely good.
Input: All the Wolf Mountain Peak books are good and this is no exception. It was very nice for Helena to finally get her own book and chance at happiness. I voluntarily reviewed an arc.
Output:
4