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 are great little snack packs - flavorful chips and fairly low fat and low cal.

Ex Output:
4


Ex Input:
Great price for an excellent chip. At about 80 cents for a 2 ounce bag these are a bargain as well as a very tasty chip. Everyone I've let try these has been impressed and commented on how good they taste. I've yet to find a Kettle chip that disappointed!

Ex Output:
5


Ex Input:
My husband and I both love this hot chocolate. We are on the auto shipment for every other month and we are going to have to change it to every month!

Ex Output:

5