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: 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.
Example Output: 5

Example Input: DO NOT BUY!  REVIEW ONLINE!  Looks like another treat made in China with multiple reports of suspected poisoning!!!  Please only buy treats made in the USA!
Example Output: 1

Example Input: Talk about horrible . . . I was craving carrot juice and the store was out of the brand I normally like which has what I like for ingredients: Carrot Juice.  I did see before buying that it said it had Organic Lemon Juice in it when I looked at the ingredients but I figured that the makers would only add it if it didn't change the taste that much.  Well all I have to say is I taste no semblance of carrots at all.  It tasted more like drinking a bad V-8 or something.  Then after sipping a couple of ounces I now have an acid reflux feeling in my throat and chest.  I drink water with lemon pretty often and never have that happen.  So now I'm wondering exactly how much lemon juice is in here.  If you want carrot juice this is NOT for you.  I don't even think they should call it that . . .  I don't normally do it, but I am seriously considering taking this back to the supermarket.  I also think I should write a letter to the company because it is just that ridiculously bad.
Example Output:
1