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: 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: first, the good news:  YES, these are really good. the bad news: They are loaded with monosodium glutamate Of course, this wasn't listed on Amazon as one of the ingredients. This is a good item if you're not sensitive to MSG-- Now I have to go to the 7-11 and buy the fried pork rinds to feed my addiction.
Example Output: 1

Example Input: This is a very good, medium-roast, medium-bodied coffee. Brew it directly after grinding the bean to capture the most flavor.
Example Output:
4