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 so wish I would have read this review before purchasing TWO gallons of this oil for my health issues. It reeks like a chemical rubber smell. This smell is coming from the black rubber gasket in the lid. When I called to report the situation to the company, Sabrina told me I would have to pay to send them a sample to have tested by a lab. Unbelievable. Good customer service would indicate that they would pay for the product to be returned and give me a full refund, including shipping. The product is faulty. Period. I will never order anything from this company again and do not recommend it to anyone based on this horrible customer service and lack of responsibility and ownership.
Example Output: 1

Example Input: I purchased these because they do not contain dairy, soy or corn. Well, in addition to being dairy free, soy free.... they are FLAVOR FREE! Absolutely horrible dry tasting bars. First words out of my mouth were "tastes like dirt" so that's what I'm going with. DO NOT WASTE YOUR MONEY.
Example Output: 1

Example Input: The Switch Kiwi Berry is a nice refreshing alternative to the typical carbonated soft-drinks on the market. The taste although unusual at first is rather pleasant once you get used to it. I'd describe it as a cross between those Dole Blended juices and soda water. Strange as it sounds it actually tastes good. Although I suppose it's slightly better for you than soda - The Switch doesn't use High-Fructose Corn Syrup - it's still full of calories and carbs. Still for people who generally don't drink soda such as myself but find themselves occasionally craving a carbonated beverage this is a nice alternative. The can is only 8.3 oz. which does make it considerably smaller than a can of soda. As long as you can stick to only drinking one you'll be slightly better off than drinking a typical non-diet soda.
Example Output:
3