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 don't like using artificial sweeteners because of the chemicals and because they don't taste good. I am a caregiver for my diabetic dad, and once I discovered this product I was hooked, except that it is hard to find where I live. When I found it at Amazon I put it on auto ship so I don't run out.  The price has gone up a lot since I first found it on Amazon, however, it still costs more in stores if and when I can find it there. I make limeade with this which I keep on hand at all times. In a gallon container of water I add 1 cup of lime juice and 2tbsp. of stevia powder. It is refreshing and almost no calories and no chemical aftertaste.  My dad uses the stevia in his coffee and his oatmeal. I haven't tried cooking with it although I know they make one designed for baking, which I'll possibly try this winter.
Example Output: 5

Example Input: Of the 12 cans shipped 11 of them had very, very serious dents in them. I'm not talking dings, I talking serious dents.  So dented that I truly thought of throwing them away.  My husband stopped me though because at $5 a can he felt that it was too wasteful.  In my local grocery store, items this dented are put into a reduced price bin, because they usually don't move otherwise.<a href="http://www.amazon.com/gp/product/B002C4HZ00">Cento San Marzano Certified Tomatoes, 28-Ounce Cans (Pack of 12)</a>
Example Output: 1

Example Input: When cooking according to instructions in microwave it keeps making popping noises and eventually it pops really loud and flies up and spills all over the place at about 1:15 secs in my microwave, WTF? It has done it to me three times in a row, then I tried it in my sisters microwave and had the same exact problem. I'm not sure this stuff is even safe!
Example Output:
1