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 don't like this product at all. Much tastier and cheaper to just use hot water and a packet of hot chocolate mix from Nestle or Swiss Miss.
Example Output: 2

Example Input: This stuff is pretty solid. Makes a decent enough pancake for being GF and makes a solid biscuit as well. What we have found works best is taking this mix and using it half and half with the Chebe mix. Between the two it makes for a very nice flour mix. The Chebe is good but on its own tends to be a little squishy, but when you mix it with the bisquick, the bit of squishiness gives the dryer Bisquick the fluffiness and moistness it needs. So, I recommend this, but I would HIGHLY recommend getting some Chebe too and cutting the Bisquick with it. Also, even though this mix has leavening agents in it, when we use recipes that call for leavening agents we add them anyway, it tends to turn out better this way.
Example Output: 4

Example Input: These are the best potato chips I've ever tasted. It's easy to go through half of a bag without stopping. The texture/crunchiness is just perfect, as is the salt and vinegar combination. I don't know how they taste so much better than all of the other chips I've ever had, but they do. And, judging from the nutrition facts, they seem to be healthier, too. They're somewhat fibrous and have a good bit of potassium and vitamin c, which could be because they don't skin the potatoes and the chips are a bit thicker than normal. And if you like these, all of the Kettle chips are great.
Example Output:
5