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 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 threw my son a baseball themed party for his 1st birthday. What would baseball be without popcorn, peanuts &get crackerjack?! Item was delivered as promised & the packaging was old school, which was appreciated by parents, granparents &the even great grandparents! Item was fresh & taste great!
Example Output: 5

Example Input: We became acquainted with this mustard when we were in Switzerland and really enjoyed it. That was our reason for purchasing it. Great find!! We have liked this as much as the one that we bought in Europe!
Example Output:
5