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: One of my kitties is a complete snob when it comes to food and she loves this. Great product to buy.
Example Output: 5

Example Input: I thought these would be the perfect answer. Sadly, I guess the pressure with which my Keurig machine shoots the water through the k-cup is too much for the disposa cup, because every single time I tried it, coffee grounds were spewed up through the tiny hole in the lid of the disposa cup all over the inside of where the k-cup sits in my keurig. And yes, I used them properly.  So the issue, at least in my Keurig machine, seems to be with the lids. Some have suggested its a design flaw with the Keurig machine. In either case, these disposa cups were NOT the answer for me.  Biggest waste of money ever. I cannot recommend.
Example Output: 1

Example Input: If you like your popped corn small this is for you. Taste is good and it is crisp yet tender. The only real complaint is it has a disproportional amount of hull.
Example Output:
3