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 little white kernels of popped corn. This was good stuff, but I think I'll try a larger white kernel to pop next time, my preference.
Example Output: 4

Example Input: I threw my son a baseball themed party for his 1st birthday. What would baseball be without popcorn, peanuts &get crackerjack?! Item was delivered as promised & the packaging was old school, which was appreciated by parents, granparents &the even great grandparents! Item was fresh & taste great!
Example Output: 5

Example Input: I bought these and tried each flavor. I could not even finish any bag but the barbecue. I really liked the barbecue but all the other flavors were gross. And the texture is really like fingernails on a chalk board to me. HOw is this the #1 best-selling item? Amazed. Anywho to each his own! Godbless and enjoy. But if you are like me and enjoy barbecue just get the barbecue kind!
Example Output:
2