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: Makes pretty good cocoa and a lot easier than on the stovetop.  Not as sweet as I would prefer and needs to be stirred to keep it in suspension.  I guess I can add marshmallows:-)
Example Output: 3

Example Input: This is a good idea in theory but doesn't work well in practical application.  The things do not all cook property.  About half of them are puffed, some are partially puffed and the rest won't puff no matter how much you cook them.  I follow instructions, measure and have a good microwave.  I usually have to cook twice as long as stated to get any puffing at all.  The flavor is ok but just awful compared to commercial pork rinds purchased in the grocery store.  I also end up with very little that I can eat out of a batch.  They also taste just awful.
Example Output: 1

Example Input: These taste great and are a healthier alternative. My favorite was the sea salt and vinegar. I probably won't order the other flavors again since I have a favorite, and don't eat potato chips all that often. But the variety pack was great to get to try them all.
Example Output:
5