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: The Good:  Walker shortbread cookies are my favorite, I love them.  I bought the highlanders and each set of cookies came individually wrapped with two cookies each.  If this were the end of it, a five star review.  The Bad:  Unfortunately, Amazon shipped them in a box that was about the same size as the container they came in from the Walkers cookie company.  After UPS was through with the shipment, my cookies were reduced to crumbs.  I contacted Amazon about this problem without ever receiving a response.  Since I bought these "Shipped and Sold by Amazon", I won't be purchasing these cookies from Amazon again.
Example Output: 2

Example Input: My 8 yo is a Kettle chip addict so I was so happy to find snack size bags for his lunch!!! Great quality and much cheaper than in the stores!!! Will definitely be buying more!
Example Output: 5

Example Input: Nothing wrong with the product, but I sure had to mix it with *lots* of other ingredients to make it edible to me. (In Texas I was called a "baby-mouth" - not into very spicy-hot foods.)  For comparison, I'm comfortable with Tostitos medium chunky salsa. 1 can of this milder Rotel, mixed with 2 slightly larger cans of diced tomatoes, was still way too hot for me to use as salsa for chips. I used some of this to make a sort of southwestern cornbread that was good though.
Example Output:
3