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. 

Ex Input:
Melitta's rich, flavourful product is a delicious treat comparable to coffees with a much higher price tag. It is a plus that the decaffeinated version does not sacrifice flavour. Highly recommended.

Ex Output:
5


Ex Input:
I bought this brand and it was just horrible. Amazon needs to source and offer 3 Ladies brand wrappers as they are just superior to anything out on the market today.

Ex Output:
1


Ex Input:
This is the best hot cocoa I've had in a K-Cup!  The taste is smooth and creamy.  It's perfect for a cold morning or an evening hot drink.  I would definitely recommend this product.  The best part is that it can be ordered on auto delivery so I never run out.

Ex Output:

4