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: We first received Stonewall pancakes as a gift. We have ordered them 2x on Amazon who has the best prices. Highly recommend this product. Will return here to buy more...
Example Output: 5

Example Input: These are great little snack packs - flavorful chips and fairly low fat and low cal.
Example Output: 4

Example Input: We've tried so many gluten free products and this one was by far the best. I've made pancakes, waffles, biscuits and the chicken recipe for the whole family with this and they can not tell the difference. Pamela's is a good mix too but this one is much better. It is expensive but when you've got a loved one who is gluten intolerant you're just thankful to have options for them. I can find it at some of my grocery stores but not all. You just have to check and see who carries it and then try a box. It's worth it!
Example Output:
5