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 worst!!! it is just plan awful bitter and strong and you cannot taste the Hazel Nut flavor at all!!!!!  Do not buy this product save your money!!!!!
Example Output: 1

Example Input: I bought this at a local gas station near my house and was excited to try it because I see it everywhere. It was nasty. I will never drink this crap again, I don't care how "good" it is for you. The taste is disgusting and I'd rather just drink regular water. Blah!
Example Output: 1

Example Input: What a great snack!  I love these crispy, crunchy, treats.  Packaged in a single serve bag, I buy these by the pack of 24 assorted flavors so I have them on hand whenever I feel the urge to snack. Unfortunately my family has discovered how good they are so they are now going faster than I had anticipated.  Time to order some more!  All the different flavors are seasoned just right--not too salty or spicy.  I love Popchips!
Example Output:
5