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. 

Ex Input:
I have three Newfoundlands so we go through a lot of food!  One of the dogs has had severe health issues and since we've switched from commercial kibble to home made food, he's thrived!  He gets regular blood tests to monitor the drugs he's on and they have been perfect since we started on Sojos!  It will not cure his issues, but he has more energy and he can't wait for meal time!  The other two are glowing with health as well!  All three dogs coats are shiny and they have tons of energy (for a Newf!)

Ex Output:
5


Ex Input:
My wife and I tried this product a few days ago. We were not disappointed. The coffee had a good flavor, and the low acid was a nice added benefit.

Ex Output:
5


Ex Input:
This food is great - all ages dogs.  I have a 3 year old and a puppy.  They are both so soft and hardly ever get sick.  The food is good especially when you have Amazon Prime shipping  :)

Ex Output:

5