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 am a fan of Silver Palate cookbooks and was delighted to see this sauce on the grocery shelf. After getting it home and warming it in a saucepan, I gave it a taste. It was so salty, it was inedible. (And I am not reluctant to use salt.) 660 mg of sodium per 1/2 cup? Are they serious? The salt overpowers any subtle flavors in the sauce. With hypertension representing a major health problem, this is irresponsible. It leaves a bad taste in more ways than one.
Example Output: 1

Example Input: I have a 11 yr old Pomimo (1/2 Pomeranian, 1/2 American Eskimo) who seems to only like human food. Although I'd love to give him human food all the time, I know it's not good for his digestive system, and it doesn't have the proper nutrients required for a dog, especially at his current age. Upon trying various brands including Blue and Call of the Wild, I couldn't justify the price in comparison to how little my dog liked the taste. After reading some positive reviews here on Amazon for Newman's, I decided to give it a go. Surprisingly, my dog started eating the food immediately after I poured some into his dish. He never does that with other dry dog food, and usually waits to eat after I've given him a nibble of everything that I eat during the day. What makes it even better is the reasonable price for the quality. Yes, I understand that organic and quality US-made food are naturally more expensive, however some of the brands charge double of Newman's and provide only half the taste. As humans, we're usually sold by the nutritious & wholesome advertisements when buying dog food, however I think its pretty important for my dog to actually like the taste of the food also. Newman's seems to be the ticket for both nutrition and taste. Will be buying Newman's as a regular!
Example Output: 5

Example Input: I had used this frequently on and off over the years and didn't realize that it is not sold in the US any longer.  In the past the instructions were in English on the packet but I don't recall what they were. Now it is entirely in German and no one I know speaks a word of the language. I don't have a scanner so one of the solutions suggested won't work.  Don't buy before realizing that if you don't speak German and have no one to translate you are in a pickle.. I have 10 packs now!  Another thing, all 10 packs expire in 6 months time, so don't buy in bulk unless you plan to eat a lot of sauerbraten.  Rated 1 only because I am unable to use the product and the product description does not mention either the language issue or the near term expiration date.
Example Output:
1