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:
I mainly use my Keurig for coffee but thought I'd try this one since I love dark chocolate and it was getting mostly good reviews.  I've tried some other chocolate K-cups and had given up on them since they all seemed pretty watery.  If I can taste water I don't consider it real hot chocolate.  I was pleasantly surprised that this tastes much better than the others I've tried.  (I must admit there are many I haven't tried, but I don't really feel like making a big scientific study of it.)  This will be my source of hot chocolate from now on.  I was a little disappointed to see how many ingredients it contains.  That sort of thing worries me a little.  Still, I don't drink hot chocolate that much, so I think I'll survive.  I'll copy the ingredient label here for those concerned plus a few items from the nutrition info:  Calories 60, from fat 20.  Trans Fat 0g. Sodium 200mg. Sugars 6g.  INGREDIENTS: sugar, glucose syrup solids, cocoa (processed with alkali), partially hydrogenated vegetable oil (may contain coconut, soybean, sunflower, palm and/or canola), modified whey, maltodextrin, salt, natural and artificial flavors, cellulose gum, sodium caseinate, cornstarch, lactose, dipotassium phosphate, sucralose, mono- and diglycerides, silicon dioxide, soy lecithin, artificial color. [Contains milk and soy.]  (I always hate seeing artificial coloring in "dark" chocolate products.)  If I had hot chocolate every day I would consider making it from scratch with more cocoa and fewer chemicals, but since I enjoy the convenience of having it nearly instantly from my Keurig on the occasional whim, I'll just keep a box of these K-cups on hand.  I highly recommend it for the taste, it isn't easy finding good hot chocolate.

Ex Output:
5


Ex Input:
These chips are the only ones I found to be tasty and healthy. They have fewer fat calories plus higher fiber for those who want good taste and nutrition--the perfect blend!

Ex Output:
4


Ex Input:
This tea makes me sleep better than sleepy time tea. The taste is also pretty good. I make mine very concentrated with less than 3 ounces of hot  water and I cover the mug top with a plate and wrap a towel around the whole thing and let it sit for as long as I can before I drink it.

Ex Output:

5