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 making Belgian waffles using the Stonewall Kitchen Farmhouse Pancake and Waffle Mix for over three years.  My waffles are undoubtedly the best ever!!!  I like my waffles light and crisp - I can't stand a heavy soggy waffle. These just melt in your mouth.  I have made homemade waffles, but I have yet to find anything that can compare to this mix.
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: This flavored K-Cup isn't out of this world, but isn't horrible. In my opinion, it's way more flavorful than the Wolfgang Puck Hazelnut K-Cup. We love flavored coffee in our house, and so I would go with this one again. Worth a try.
Example Output:
3