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.

This is the best popcorn I have ever had. As a kid I ran the popcorn machine in a theater so I feel I know what I'm talking about. We used yellow popcorn but I still think white is best.
5