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.

Example Input: Great book...really many tasty recipes are there in this book..which keeps you fit and healthy..I like this helpful guide very much..author explained very well..highly recommended
Example Output: 5

Example Input: Looks just like the picture. Fits nice and is well made. Only reason for lower rating is being the product absolutely reeks. I've laid it out in my home and I'm hoping that the smell goes away by my party on Saturday.
Example Output: 3

Example Input: I bought 2 of these as gifts and heard great things about them so I bought myself one. I am so pleased with this. It keeps my coffee just as hot as when I pour it in my cup which is how I like it! But if you dont want it that hot you just turn it down. I like that it has a digital read out and easy off on digital touch.
Example Output:
5