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: These potato chips are DELICIOUS!  I have not had potato chips in approximately two years as it has been difficult to find organic chips.  Amazon lowered the price on these, and I finally had a chance to order them.  I most definitely will be ordering them again!  My family and I love them.  They are pure and void of all artificial flavorings.  The true flavor is present, and it satisifies the need for something salty, sweet, spicy, and crunchy.  A++++
Example Output: 5

Example Input: This is by far the best hot cocoa I have found yet for the Keurig. I love the assortment and the peppermint is my favorite. I would give these try for sure if you are looking for some hot cocoa K-cups. All the other selections for hot cocoa that I have tried were just okay tasting. These are AMAZING!!!! LOVE THEM! I will order these for sure again!
Example Output: 5

Example Input: This product is great. I have been searching for an easy to use and non sweetened green tea. So many of the teas are sweetened with Splenda type sweeteners and I prefer to use Stevia. The Jackie Chan green tea appears to have been discontinued.  I mix this product and love the taste. A little lemon and Stevia and I have the perfect evening iced tea. It provides all the benefits of green tea, and the instant convenience.  I give it five stars
Example Output:
5