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:
These taste wonderful!  Guilt free if you can stop at one bag.  Will definitly buy again!

Ex Output:
5


Ex Input:
A little more money than your average cookie, but VERY much worth it.  You will not find a cookie like this anywhere else!

Ex Output:
5


Ex Input:
I bought this extract to use in a pumpkin beer, but I would have ruined the batch. This stuff is gross!

Ex Output:

1