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:
We received a gift box that contained the Stonewall Farms Pancake Mix and they were out of this world. They are the lightest, fluffy and flavorful pancakes and waffles you will ever taste.  And the price on Amazon is a big savings over ordering from Stonewall Farms.  Don't shy away from the larger size and the two pack because you will devour these pancakes in no time.

Ex Output:
5


Ex Input:
Only 5mg sodium per serving, chips are crisp.  I sometimes will dip in a low salt ketchup and that adds a bit to the flavor.

Ex Output:
5


Ex Input:
First of all, I have owned a Keurig for about 4 years now, and I've tried lot's of coffee.  During that time, I have had an occasion k cup that didn't function correctly and loaded the brew with grounds.  I probably should have returned these before I bothered to open the second box.  Since I drink my coffee from a thermal cup, I can tell you that taking that last drink to find your mouth full of coffee grounds stinks.  I have had to throw out at least 6 cups of coffee.  Its a bit like Russian Roulette, and I've started straining it after I brew it.  I know that its not my brewer because it is not happening with the Green Mountain, Timothy's or Tully's that I also use.  The good cups are a bit weak for my taste, but the flavor is ok.  Definitely prefer not to waste $'s on a product with a manufacturing defect.

Ex Output:

2