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: In all fairness my friend absolutely loves this product. I purchased it based upon his suggestion. Unfortunately, the smell (oil I am assuming) of it cooking made me feel ill. Even though the product cooked perfectly, the smell lingered in my microwave for well over a day.
Example Output: 2

Example Input: We first received Stonewall pancakes as a gift. We have ordered them 2x on Amazon who has the best prices. Highly recommend this product. Will return here to buy more...
Example Output: 5

Example Input: This mix was OK and the price is reasonable, but there are a lot of unusable seeds in the bag that do not sprout - I'd say about 25%.
Example Output:
3