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 Melitta Riviera Sunset blend is a nice, and light coffee that is suitable for anytime of day.  It's particularly great for drinking at night because it is decaffeinated.  The texture is nice, and does not have an acidic taste or anything.  It's meant for casual drinkers.  I do prefer my coffee darker, WITH caffine, but I did enjoy this blend.  I would recommend giving this a try and judge for yourself.
Example Output: 4

Example Input: I am fairly certain this is the same tea sold by Caribou Coffee.  I think I could be considered an addict! The flavor is so good - lots of cinnamon and slightly spicy because of it.  Price for 50 is good and less than I have been able to find it elsewhere.
Example Output: 5

Example Input: sweet, juicy and yummy. I have to try hard not to eat too much at one time. So addictive. It tastes just like those in Asian market. Actually this one tastes a bit better.
Example Output:
5