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: Delivered by UPS, this product is just about perfect. It does not have a disagreeable smell and the dogs love it. It is much less expensive than prescription dogfood and our dogs are thriving on it. You can even see an occasional pea and/or carrot. No grain to worry about.
Example Output: 5

Example Input: I thought I was purchasing a high quality item but it's not all that. The chocolate is very sweet and as you chew on this product you can tell the chocolate is loaded with sugar by the crunchy texture. I'm going to say it's not worth the money and I'm not satisfied. At the same time of purchasing this product I also bought Sunmaid chocolate covered raisons which I rate from a 1-10...a 10. Now we are talking about yumminess!!!!! So customers...if you are going to choose...let it be the Sunmaid...you won't be dissappointed
Example Output: 2

Example Input: I tried this gum after Trident cinnamon became hard to find a couple of years ago. (Trident told me that they were overhauling the plant that made the gum so it was in short supply but it would be back.) I quickly discovered that the Flare 5 was far superior to the Trident and I haven't looked back. It does last a long, long, long, time. Unfortunatley, as other reviewers noted, it has become very hard to find in stores. Trident cinnamon is everywhere but now I don't want it. Amazon saves the day again.
Example Output:
5