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:
Whats there to say about a fantastic chocolate chip cookie! The only thing that could be improved is if they offered a bushel box of these so you would not run out so fast. Hope these don't go the way of the dinosaur!

Ex Output:
5


Ex Input:
These are the worst gluten free cookies I have ever tasted.  They were hard, dry and tasted like tapioca flour.  Avoid these at all cost.

Ex Output:
1


Ex Input:
the greatest, best chocolate taste in any keurig k-cups out there. will definitely order more. everyone in the office tries to steal them. i'm a chocolate nut, and these pass the test.

Ex Output:

5