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 have been buying ONE Coconut Water with a Splash of Pineapple regularly for awhile now. I like the flavor and ordering it on line is very convenient. Also, I have had no problems with delivery.  Unfortunately, IPROZON has just lost my business.  I didn't mind paying $15.00 for a case of 12.  I will not, however, pay $39.95 for a case of 12.  That is robbery.  I can walk into Fred Meyer Grocery and buy a case of 12 for $17.88.  Plus there are other sites still selling it for $15.00 per case.  I noticed IPROZON is still selling the other flavors of ONE coconut water for $15.00 for a case of 12.  So what on earth are they thinking.  I am quite unhappy with having to trust one of these other sites with my credit card information, but I am willing to do that versus paying nearly $40 for a case of 12.  Quite ridiculous.
Example Output: 5

Example Input: I have never taken the time to write a review before, but in this case others need to be warned off. I expected to get a product similar to what I have seen in the stores, but this obviously is a replica. The sliders on the bottom of the tray that are supposed to keep the tray straight when you slide it in and out broke off before I even got it out of the package. It is not something you can fix unless you have a solder gun. Even then, it is very "sticky" pulling the tray out because there are no rollers. It is metal on metal, which does not work well without some sort of lubrication. I love Amazon, but this product is inferior at best.
Example Output: 1

Example Input: I love VitaMuffins, but my supermarket sells one box of 4 muffins for $6.29.  Instead I bought the mix, 3 boxes for $16.00, and each box makes 12 muffins. Instead of $1.62 per muffin, the mix only requires water & eggs and works out to about 48 cents per muffin, and very easy to make. That's a great deal.
Example Output:
5