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: Switch Orange Tangerine is ok but not what one might expect.  First of all, there is more apple and grape juice in here than orange or tangerine (this will not be a surprise if you are familiar with the other flavors as that is also true with them).  Switch basically is carbonated juice.  The taste isn't a bad and it is supposed to be healthier than soda (which can be debated).  It is a reasonable drink for snacks but if you are going to need several if you are actually thirsty.
Example Output: 3

Example Input: Funny thing - I bought some of these K-cups several weeks ago based on the strength of the reviews at that time.  I just got them last week and have had a few cups since then.  I'm using 8 ounces of water to prepare the cocoa.  I thought they tasted pretty good - reasonably chocolaty and smooth.  They were sweet, but not overly so, and the richness made me check the calorie count on the box.  60 calories - hey, not too bad!  It wasn't until now that I came back to place a review and I read the most recent reviews from others did I realize they use artificial sweetener.  Honestly, if I hadn't read it I would have never known - I didn't detect anything that gave me the hint when I drank it.  I think if you like a quick cocoa on the run you'll be happy enough with these K-cups.  Are they as good as a Swiss Miss packet from Costco?  Maybe not, but in my office I don't want to deal with getting powder on the counters and needing a spoon to get things mixed.  You'll sacrifice a little for the convenience, but to me it's well worth it.
Example Output: 4

Example Input: This sugar is very good.  Use this in your coffee, cereal, etc for a week and you'll never go back to white sugar, white sugar will taste terrible.  Plus from what I've read, this Raw sugar contains a lot of minerals that are missing in our diets.  The product was delivered fast and well-packaged.  My only complaint is the price.  I wish I could find Raw sugar cheaper.  I would be happy to buy in bulk, but this is the cheapest I have found.
Example Output:
5