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: These chips are the only ones I found to be tasty and healthy. They have fewer fat calories plus higher fiber for those who want good taste and nutrition--the perfect blend!
Example Output: 4

Example Input: I like the dried peas from Just tomatoes and I also like their Just Corn.  They are way too expensive though.  They are really handy because I don't use frozen or canned foods because I follow an Ayurvedic diet which prohibits them.  When I can not find fresh peas I have to use these.  I will probably have to do without as I can't afford these, too bad.
Example Output: 3

Example Input: first, the good news:  YES, these are really good. the bad news: They are loaded with monosodium glutamate Of course, this wasn't listed on Amazon as one of the ingredients. This is a good item if you're not sensitive to MSG-- Now I have to go to the 7-11 and buy the fried pork rinds to feed my addiction.
Example Output:
1