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 love canned sardines and when they put me on a low salt diet I figured that was the end of my sardines until I found these. They taste fantastic,the price is reasonable and you can at least have something that before these sardines was not available to people on a low salt diet. Side benefits as they are skinless and boneless. Thanks to the Roand Co.
Example Output: 5

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: Of the many purchses I made on Amazon this past December, I was most pleased with the Pocky Chocolate Cream Covered Biscuit Sticks (Pack of 10). They arrived on time, and they were a 'hit' as a surprised gift. Be sure to keep them refridgerated.
Example Output:
5