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've used this BBQ sauce before and it is good especially considering that is free of so many negatives (like corn syrup and for us gluten) but the price on this can't be right. Order directly from the Daddy Sam's website to pay $5.50/19 oz bottle. This price would HAVE to be a case price although the description says 19oz.
Example Output: 4

Example Input: I keep this on hand for the young at heart. We enjoy a cup almost every night. Good taste. will buy again.
Example Output: 5

Example Input: These are one of my favorite ways to eat grains Plus they are a good source of protein. 17 chips per serving is just about right. I wish they had a little less salt but for the calorie/fat/fiber content, they are pretty healthy. Great with soup or salads or just plain. I would definitely recommend these.
Example Output:
4