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: 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

Example Input: I have this on auto ship because I use it so much. I have gone to every grocery in AZ and the cheapest place is Amazon! This is a great product and whatever you make using this flour will taste great. My son has Celiac and is allergic to gluten. I have tried every pancake mix and this one is the one I settled for!
Example Output: 5

Example Input: I received my order of Twinings Earl Grey K-Cups today and anxiously tried one tonight. Wow, I am disappointed to say the least. Funky smell, taste and aftertaste compared to Bigelow's Earl Grey. Now I have 49 K-Cups that I don't want. Not all Earl Grey's are created equal.  Edit: I mistakenly left this review for the decaf Earl Grey and I ordered the regular blend. Oops
Example Output:
1