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've tried a lot of different K-Cups and this is the weakest K-Cup coffee I've ever tried. It should not be labeled "Medium Roast", it should be labeled "Warm Water Tasteless" Roast. Too bad I bought a large box. What a waste...
Example Output: 1

Example Input: it has good tast and crunchy. I bought black sesame before, it is good too. highly recommanded.
Example Output: 5

Example Input: I like to put wild rice in many dishes. This is a good buy and easy to drop into other rice dishes or soups.
Example Output:
5