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:
Delivered by UPS, this product is just about perfect.  It does not have a disagreeable smell and the dogs love it.  It is much less expensive than prescription dogfood and our dogs are thriving on it.  You can even see an occasional pea and/or carrot. No grain to worry about.

Ex Output:
5


Ex Input:
These Backyard BBQ Kettle Chips were a great deal with the promo code.  It was nice to have a larger size bag.  Some Kettle Chips in the grocery store are only about 5 ounces and we polish them off in one family lunch!  They arrived fresh and were not in crumbles as some other chips from Amazon Grocery have been.  Great flavor and All Natural!

Ex Output:
5


Ex Input:
I have tried and enjoyed The Switch black cherry flavor, but their kiwi-strawberry left a lot to be desired.  To my palate, the flavor seemed a mix of floral and medicine-y, not very pleasant.  I appreciate the fact that they are trying to push a healthy alternative to soda (basically carbonated water and fruit juice), but they need to get the flavor right.

Ex Output:

2