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: This product is good. However, I feel the carbonation is a little more emphasised over the fruity flavor. Unless of course carbonation is really wanted. I didn't find the juice flavour as good as Juicy Juice. And the cost is ~50% more per ounce for Switch vs. Juicy Juice for my region. I would say that for everyone who is interested in this product... let your taste buds be your guide.
Example Output: 3

Example Input: I had to pick up a grocery store brand after running out of our regular Innova dog food. I fed this to my 160lb dog for a week and could not believe the amount of waste this brand produced! He was going up to 10 times a day! Unbelievable! This just goes to show how much filler is in this food. Would never recommend.
Example Output:
1