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 was introduced to the Blair chips by a friend. I mostly ignore potato chips because I really don't like them. However, these I like the most among all the chips in the Blair line. They are savory and can be eaten rapidly. The hot chips are good because they are so hot, I cannot eat them fast. I am so happy I cannot get them at local stores because I would eat them all the time.
Example Output: 5

Example Input: The coffee pods are convenient but the quality of the coffee is not good (you will find this especially if you are used to using a grinder, fresh beans etc). I'm not sure if this is due to the pod itself or the machine in terms of temperature, pressure. I suspect the problem lies with the pod technology and the coffee within. I'm going back to a grinder, fresh beans and a traditional machine.
Example Output: 2

Example Input: I don't know if I got a bad batch or something, but I could'nt get these to cook right. I followed the instructions and after about two minutes, the bag stoped expanding. I opened it and found everything badly burnt. the next bag I waited about one and a half minutes. I opened it and found half the chips uncooked. I never could find a time that either left some uncooked or some burnt. (I shook the bags and scattered the chips inside them well before microwaving each time)
Example Output:
1