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: Great price for an excellent chip. At about 80 cents for a 2 ounce bag these are a bargain as well as a very tasty chip. Everyone I've let try these has been impressed and commented on how good they taste. I've yet to find a Kettle chip that disappointed!
Example Output: 5

Example Input: This is a great coffee.  Its dark but not bitter, a little chocolaty, and it reminds me of an Adirondack lodge.  I can get them for a better price in a Caribou Coffee store, however.
Example Output: 5

Example Input: I was looking forward to this order from Amazon. I've been on a calorie restricted diet for months and it's the taste of grains (bread, chips, crackers)that I miss the most. I find these Thin Crispbreads from Kavli to be the perfect solution. They are ultra thin. I mean they are thinner than you might think possible.  As soon as I saw the first one I was amazed it made it through the shipping process in one piece. So far I have not come across a single broken cracker. My next thought was...."well, as soon as I bite into it, the thing's going to explode into a thousand tiny shards. I was amazed when it held together and showed only a perfect half moon hole where my teeth had been. These crackers really hold together nicely.  The flavor is very plain. There is no seasoning, and very little salt. they taste like the grains they are made from. I have ordered a case of the "Garlic" flavor and look forward to trying them. I eat these with a generous spoonful of very low calorie pepper and eggplant spread that makes for a very low calorie snack. I highly recommend these.
Example Output:
5