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:
very good price and we love our keurig trying the summer flavors are great and will probably order more before the end of the summer.

Ex Output:
4


Ex Input:
Raving reviews made me buy this for dogs. I have a lab mix a beagle and 2 Shepards that I got from impoundment and they're not spoiled. One chewed it to crumbles but left it on the ground and my Shepards have been burying them in the backyard. I wasted my money on this one.

Ex Output:
1


Ex Input:
This coffee tastes better than Folgers. That's not much of an endorsement, but since Folgers is about all I ever drink, it's my only point of comparison. I would recommend you don't try the stupid and counterproductive experiment of replacing your usual caffeinated stuff with a cup of this some Saturday morning, as doing so will only result in one of those headaches it takes three over-the-counter painkillers to get rid of. And in the meantime, while you're trying to fight off the headache, you'll be completely unable to make headway with that craptastic novel you just got from Amazon, which was reinforcing all your worst opinions of the romantic fantasy subgenre before you had to lie down and commence clutching your forehead.

Ex Output:

3