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: It's a refreshing drink when served cold. A bit sweet when warm. A little tart, but tolerably so.  The flavor is less orange than tangerine, yet I can distinguish several different "layers" of citrus in it, including the orange. It's an interesting sensation.  I am a little bugged by the fact that an 8.3oz can (2/3rd-size) manages to pack more junk calories in than a full-sized can of cola. It's also supposed to be 100% juice, but reconstituted grape juice is practically pure sugar and there are "natural flavors" noted in the ingredients list as well as a soy warning which to me implies some sort of MSG, probably added with the citric acid.  So, maybe it's not an especially healthy beverage. It's still tasty and provides a diversion from more typical sodas.
Example Output: 3

Example Input: After trying the Namaste pizza crust I was blown away--Delicous!  Possibly, the best pizza crust I've ever had.  So, I tried their Cheez Pasta thinking it would be great as well.  Big surprise.  It was awful.  I could barely tolerate one bite of it.  I, like one of the other reviewers, will save the pasta but make my own cheese sauce.  The cheese sauce smelled and looked terrible.  Do not waste your money on this product!
Example Output: 1

Example Input: I happen to like foods that arent as sweet as kool aid or other sugary drinks. Very refreshing after mowing the lawn and helped  keep those afternoon headaches away.
Example Output:
5