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:
With any low fat or low calorie food, you're going to sacrifice taste of portion size.  With this product, you sacrifice both.  It's a good idea, which was done well with the Oreos and others in this series of "100 calorie" snacks, but I think you're better off with a single cookie from the regular Chips Ahoy box than a whole bag of these.

Ex Output:
3


Ex Input:
Here's a tiny consolation: easy Thai barbecued chicken! Cut your usual fryer in quarters, cook it slowly over charcoal or quickly in a hot oven, and then brush it generously with "sweet chili sauce" and cook it just a few minutes more. Most authentic with 'sticky' rice but also delicious with brown or red rice.  In Thailand, people squat over hibachi-sized braziers on the sidewalks and sell portion of this sort of barbecued chicken. Sometimes they trot alongside inter-city buses as they pull into stations, and sell chicken through the windows. Don't be squeamish! This is a treat you'll remember. The same sauce will enhance the flavor of any fowl from blackbird to condor or whooping crane.

Ex Output:
5


Ex Input:
service was great, but I meant to buy Swiss Chalet chicken SAUCE not the Marinade :)  Love the sauce - have yet to try the marinade

Ex Output:

5