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: Do not buy this product.  You will not be doing your infant any favors.  If at all possible, you should be breastfeeding.  (I know it's not always easy or convenient.)  If you can't then in my opinion the best formula is Earth's Best and even that is disappointing.  Basically, they dry cow's milk and remove all the natural nutrients then "fortify" with synthetic vitamins/minerals.  Pathetic.  Just buy whole organic milk, raw if possible.  There are recipes online to make it closer to human breast milk.  Sorry to be so matter of fact.  I'm losing patience for all these evil corporations capitalizing on the "green" movement.  OH and by the way the second ingredient in this garbage is sugar!!! Good way to start the diabetes/obesity while they're young!
Example Output: 1

Example Input: I'm disturbed that these treats, as many reviewers state, are so "addictive." My dog, too, loves them but has now begun to shun her meals and will only eat these treats. In trying to make sense of her current state of anorexia, I recently became aware of the FDA advisory on Dec. 19, 2008 stating that one of the symptoms to be aware of in dogs eating chicken jerky treats made in China is "decreased appetite, although some may continue to consume the treats to the exclusion of other foods." So be very wary of the fact that dogs seem to go crazy over these treats.  Although the Dogswell Company states clearly that their product is not contaminated, and that third party testers have confirmed this, do the owners of the company truly know what's happening in China behind the scenes?  Or who might get paid off to test certain batches of jerky?  I and my vet have been unable to come up with any other explanation for my dog's anorexia, except that it coincides with her increased interest (and now ONLY interest) in Happy Hips since I began treating her with them last spring.  Thankfully, her kidney function is still fine, but if you research this on the web, many other dogs were not so lucky and died due to kidney failure. See this link to the FDA website suggesting caution to consumers in using chicken jerky products from China.  Be informed!  [...]
Example Output: 1

Example Input: I really like this coconut water, but I was surprised that per 17oz box it's the same price at Wegman's.  Probably won't be ordering again unless there's some sort of discount.
Example Output:
4