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: After reading all the great reviews, I optimistically ordered some of this tea. I've had problems with sinus congestion very often this winter and have tried all kinds of remedies with little success. Unfortunately, this really didn't do anything for me. The taste is OK (bearable), but it did nothing to relieve my sinus congestion. (So far the only things I've found that have helped me somewhat are the Vicks personal warm mist humidifier and Neti Xlear)
Example Output: 2

Example Input: Husband and Grandaughter LOVE this cocoa... Make it for them all the time as I drink my coffee.. My husband is a very picky person but for some reason he really likes this one product and wants me to keep it in stock here at the house.. Loves it at night after dinner on cold evenings.
Example Output: 5

Example Input: Okay, not like the butter most people would expect, but a very smooth, full and slightly savory vegetal flavor. The first time you take a sip, you might not notice it, but let it sit in your mouth a bit before swallowing and then take another sip. The more you drink it, the more it will become apparent. It is very soothing to the pallet. Jin Xuan Golden Lily Oolong from Summit Tea Company it a good if not great tea, especially for the price and quantity you get. A solid every day drinker. It is not as complex as some that I've had, but that could be due to how long ago it was harvested and a number of other conditions. Depending on how you brew it, a serving of these leaves is good for 4-5 infusions before the flavor wanes, making it an even better value. And even then, the broth is soft and sweet. If you like your Oolongs more on the green side, then you should give it a try. I know I'll be ordering another tin.
Example Output:
4