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 product has a strong after-taste of Crayola crayons!  I am in the process of trying different brands of coconut oils for cooking purposes.  Upon opening the plastic container, the aroma of crayons immediately fills the room, and this flavor permeates the food that is cooked in it.  I suspect the source of the problem is the plastic used in the plastic container as I have not experienced this with any of the other brands purchased.  To date, my favorite coconut oil is distributed by Barleans.  The flavor is fantastic.  However, they do not supply a gallon-sized tub,and Dr. Mercola has the best product in that size category.
Example Output: 2

Example Input: I thought I was purchasing a high quality item but it's not all that. The chocolate is very sweet and as you chew on this product you can tell the chocolate is loaded with sugar by the crunchy texture. I'm going to say it's not worth the money and I'm not satisfied. At the same time of purchasing this product I also bought Sunmaid chocolate covered raisons which I rate from a 1-10...a 10. Now we are talking about yumminess!!!!! So customers...if you are going to choose...let it be the Sunmaid...you won't be dissappointed
Example Output: 2

Example Input: This coffee is okay but certainly not as good as Green Mountain's Breakfast Blend. It just doesn't taste as good.
Example Output:
3