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 Q]: These bars are just the right balance between the flavor of the coconut & the sweetness of the rice syrup. Unfortunately, although the expiration date is in 2013, about a third of mine went bad, or perhaps started life that way. They had a funny, metallic taste, & one even had some black substance on it, which may or may not have been mold. I'm wondering if refrigerating would have prevented this. I highly recommend these bars, but beware of the keeping quality!
[EX A]: 3

[EX Q]: NuNaturals Stevia is the only sweetener that I use in my beverages and cooking. I have tried other brands and this one is the best! It hasn't any odd taste, and tastes better than sugar to me. I buy the large 12 ounce container and it lasts me for months! I only wish they would put this in more products sold at the grocery stores. There is a soda that has stevia in it that I purchase at a health food store called Virgil's Zero and it comes in different flavors...it is great and I don't have to be concerned about the sugar content that is in traditional sodas. This product is great and I think is the best of stevia products on the market.
[EX A]: 5

[EX Q]: I got the sea salt and vinegar chips from Kettle.  I am used to the Salt and Vinegar chips in the white bag if I am allowed to say that.  Anyways, my first impression for this is wow at all the chips you get for the price.  I got the 9 0z x 12 bags and wow it is so many for the price.  You can tell they are high quality chips just from the packaging, also.  Well being used to the cheaper chips I wasn't expecting how mellow these things are.  The ones I am used to have a really sour taste to them which I didn't mind but they had tons of flavor.  These chips don't have any sour to them at all, and taste just like them but a lot less strong aftertaste.  If you want to try out Salt and Vinegar chips I suggest you try these out first.  So, for the price and how many you get, these chips are definately worth it.  They are thick and crunchy like the more expensive chips you get at high quality restaurants.  I recommend these, 4 stars.
[EX A]:
4