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. 

Example Input: My Scotties were full of hot spots and when I used this within a week all the hot spots were gone. The smell is kinda strong, but not bad. It's tolerablel.
Example Output: 5

Example Input: Fortunately, before I purchased I read through enough reviews of these k-cups to discover that they add some artificial sweetener to them along with sugar.  I'm shocked that the item descriptions don't make this clear.  I consider that important information!  I decided to give them a try, anyway, considering some reviewers thought it was hard to tell.  I realize that many products do this recently, but they usually fall short of hiding that nasty aftertaste.  Sadly, this one does too.  It's close - I can almost enjoy a cup - but it's still unmistakable, especially if you don't consume much artificial sweetener.  (I chew sugar-free gum, and that's it for me.)  It's a shame, too, because the chocolate flavor is nice.  In fact, I rated these a 3 simply because my son tolerates the sweetener enough to drink them.  And I was really jazzed about the caramel cappuccino before I found out about the sweetener...but now I won't be buying any.  (Side note: many cappuccino reviewers complained that they're instant coffees that taste like gas station cappuccino - that would be fine with me, if it weren't for the artificial sweetener which those gas station cappuccinos don't have.)  If they begin to offer a line without the artificial sweetener, I'd buy it, but until then I'm staying away from Grove Square products.
Example Output: 3

Example Input: The cookies came sealed and seem to be high quality in there ingredients.  The only thing is they just don't taste that good. My girlfriend and I thought these might be a good dessert-like option while doing the Paleo diet, but after trying one of each kind over a couple days we just don't find ourselves going back for more.  I would much rather not have a dessert and really check that box on a cheat day than being left wanting more after eating these.  If you have a true gluten allergy, maybe this is a good option for you but I'm not a believer.
Example Output:
3