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: This is easily the best potato chip that I have ever had.  Look at the ingredients:  Ginger and 3 types of hot pepper.  How can you go wrong?  Obviously, not for you if you don't like spicy food. But, if you DO like spicy food, you'll probably love these.  They have that hot-with-a-hint-of-sweetness flavor combo that is prevalent in a lot of Thai food.
Example Output: 5

Example Input: This product is great for pancakes. For baked goods I blend Bisquick (2/3 part) with Pamela's bread mix (1/3 part) for great gluten-free/dairy-free treats. The bread mix makes it less crumbly.
Example Output: 5

Example Input: I have used your product for years and find myself in a town where they are sold only in very small bottles.  I am used to buying your product by the half gallon and would like to make my purchases online.  I have tried using other products which pale in comparison to your Original Barbecue Sauce.
Example Output:
5