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: Well, at least they live up to their name. These nuts are definitely hot, too bad that's all the positive I have to say about them. Other than that, they taste like cardboard, and not very good cardboard either.
Example Output: 1

Example Input: Don't get me wrong, it is good. It is sweet and tart. It is slightly fizzy but not overly so. It is just big enough to quench your thirst before it gets warm.  But WOW, it was sweet. I mean, this is Kool-aid meets Grenadine syrup with some lemon-lime soda tossed in. So if you are looking for something like soda water with a slight flavor, just keep going. If you want a sweet drink to get rid of a craving, then this is for you!
Example Output: 3

Example Input: The units go together easily, but no matter how much or little coffee I put in the filter, it caused overflow. It's as if the filters are too thick. I also had a few cups that didn't pierce correctly.  Definitely not worth the money for these!
Example Output:
1