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: Kind of a ripoff. I bought the theater box instead of the 5 piece candy bar version and that turned out to be a big mistake. Each box has only 8 or 9 pieces and they are randomly filled so you are not guaranteed even 1 piece of each flavor. One box had 6 green pieces and 3 black. A better value is 20 pack of the original 5 piece bar. This theater box is sold by weight (4oz) and not volume. The box is about 90% empty- Ripoff!
Example Output: 1

Example Input: We received a gift box that contained the Stonewall Farms Pancake Mix and they were out of this world. They are the lightest, fluffy and flavorful pancakes and waffles you will ever taste. And the price on Amazon is a big savings over ordering from Stonewall Farms. Don't shy away from the larger size and the two pack because you will devour these pancakes in no time.
Example Output: 5

Example Input: What a wonderful starter kit this is. While I am and was familiar with some varieties of exotic sea salts, I certainly had not had the opportunity to try this many at one time. Tather than chance buying a product that I did not like and being stuck with it, this allowed me to give each and everyone a try. I plan to order at least three more sets for presents this coming year for friends that, like me, are foodies. This is an excellent product.
Example Output:
5