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: With any low fat or low calorie food, you're going to sacrifice taste of portion size.  With this product, you sacrifice both.  It's a good idea, which was done well with the Oreos and others in this series of "100 calorie" snacks, but I think you're better off with a single cookie from the regular Chips Ahoy box than a whole bag of these.
Example Output: 3

Example Input: this was delicious coffee for a great price which i could not find at any store in my area or areas nearby
Example Output: 5

Example Input: Crisp/crunchy and thin- very low in sodium. I usually prefer mine plain but shared a package with a friend who enjoyed these with a tuna salad topping. A great alternative to the expensive styrofoam varieties sold at most stores. Excellent product. The rice cakes for this brand are also wonderful and for those on a no salt diet, 0% sodium.
Example Output:
5