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: After reading all the great reviews, I optimistically ordered some of this tea. I've had problems with sinus congestion very often this winter and have tried all kinds of remedies with little success.  Unfortunately, this really didn't do anything for me.  The taste is OK (bearable), but it did nothing to relieve my sinus congestion.  (So far the only things I've found that have helped me somewhat are the Vicks personal warm mist humidifier and Neti Xlear)
Example Output: 2

Example Input: I'm a little shocked that this so-called health food product is made from Chinese grown ingredients.  I'd be curious to see what the carbon footprint of each bite is.  Also keep in mind that Chinese ingredients and products have been found to have all kinds of contaminants such as lead in toys and melamine in milk and other exported food products. All the ingredients in this snack are widely available in the United States.  Why not support products and companies who source locally and consider our own economy before we sell out for a slightly cheaper price?  Your purchasing choice does make a difference.  Let's stop expecting corporations and governments to take care of our safety and economy.  They never will.  We can change the way these companies do business for the benefit of our long term health and economical well-being. Make purchase decisions wisely.
Example Output: 1

Example Input: I use this product daily, and it provides a steady stream of energy.  I do not get jittery or crash.  It also helps me practice portion control because it acts as a slight appetite suppressant.
Example Output:
5