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: This is pretty good canned meat. The sausage I used in dirty rice, the hamburger I used for taco salad, the chicken with wild rice, and the pork with stuffing. the turkey I gave to a neighbor because I don't eat it. The various meats are all pretty good quality and was enough for 3 large portions each can. There weren't large chunks of fat or gristle in any of the cans, which I've experienced plenty with some brands of canned meats. The proportion of liquids to meat was fair too, it's not one of those with a spoonful of meat and the rest is liquid either, though it does all need to be cooked and shrinks quite a bit due to high fat content in the meat. None of the meat was seasoned, at all. This is very helpful as the meat can be used with any flavoring. There is a mild "spam"-like texture and taste to the meats(but way better than spam any day), almost a brine or something, that's why I heavily seasoned it. Don't plan on frying anything in the fat from these meats, it gave everything a slightly rancid, soury taste...no idea why! Due to the higher calories and higher price, I will only stock this as emergency food. I will buy more for that reason.
Example Output: 5

Example Input: Google "propylene glycol" to find out why.  I bought this product, along with several others, without running the ingredients by my wife first (a nurse of 30 years) she was surprised when she noticed it.. we went a googling, and poured my $50 order down the drain afterwards.  There's "pure" and then there's "not so much".....  from the website:  [...]  Propylene Glycol  A cosmetic form of mineral oil found in automatic brake and hydraulic fluid and industrial antifreeze. In the skin and hair, propylene glycol works as a humescent, which causes retention of moisture content of skin or cosmetic products by preventing the escape of moisture or water. The Material Safety Data Sheet warns users to avoid skin contact with propylene glycol as this strong skin irritant can cause liver abnormalities and kidney damage. Also used in:    Tyre sealant   Rubber cleaner   De-icer   Stain removers   Fabric softener   Degreaser   Paint   Adhesive   Wallpaper stripper  I wrote the company about this concern and they never responded....
Example Output: 1

Example Input: The only complaint I have about the product is the price and I wish it were organic as well.  Other than that it's a great, versatile mix.  I've used it for pancakes and cherry cobbler : ).
Example Output:
3