In this task, you're given a review from Amazon's food products. 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 or mixed, 4: good, 5: extremely good. 

Example Input: I'm dieting, and I use these as a "treat" to myself, when I'm craving chocolate.  I usually brew one of these & one of my coffee K-cups (either plain or hazelnut).  For 60 calories, it's not a bad way to satisfy a chocolate craving when you're on a "calorie-budget!"
Example Output: 3

Example Input: Go to Costco, and you can buy lower than this  price per oz. Currently $32 ($3 off regular $34.99)+ tax for big size = 0.83$/oz.  Besides, it is more convinient to return if you kid does not like this formula  Be careful, many times some sellers over price a product, and still make the product rank in the best sellers.
Example Output: 1

Example Input: This is a very smooth tea from Argo Tea.  I was so excited when they came to NYC, and I bought a bag of this tea to make at home.  It has an almondy/chocolatey flavor (but not overpowering).  It's a great tea for everyone, including people just starting to drink tea.  I love it in a Latte (I just microwave some milk and use that instead of water).
Example Output:
5