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 ordered numerous teas, potions, lotions and other remedies...BUT have never had a lack of product in an order that was sealed.  The tea bag wrapping in question was sealed without a tea bag inside.  I would have said something sooner, however...I only tried these when I had a sinus infection and the last 3 times I tried to use one...the sealed pouch was EMPTY.  BEWARE!
Example Output: 1

Example Input: Delivery of the product was quick, however the items are smaller than how they appear on line. Next time I would order the larger size.
Example Output: 3

Example Input: Hi, coffee doesn't smell or taste great. I recommend Senseo Vienna. Still have packages of "Paris" and nobody wanna drink it. Guess I just have to throw it away.
Example Output:
1