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: Maybe my tastebuds are different but I bought this at a local healthfood store and I'm not completely sold on it.  I tried it in my tea and it did leave me w/ an aftertaste...just like most sweetners. *shrugs*
Example Output: 3

Example Input: 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.
Example Output: 5

Example Input: I tried this product after Switch's Watermelon-Strawberry drink, and while I thought that drink was decent, I was not a big fan of the Orange-Tangerine flavor.  The taste was an obvious blend of a number of different flavors in addition to orange and tangerine, and for me that made it taste more Orange-ish than Orange.  As others have noted, the amount of calories and sugar are not that different from a cola, so it's not really clear that it's THAT much healthier than other sodas.  Personally though, I'd rather just grab a glass of orange juice or eat an orange instead.  I guess it depends on what you are deciding to "switch" from: for people looking for an alternative to cola, I guess this might be an attractive product.  But as someone who prefers water or tea and rarely drinks sodas, this product isn't close to making me want to "switch".
Example Output:
3