Detailed Instructions: In this task, you're given a review from Amazon. 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, 4: good, 5: extremely good.
Q: I really like this book. It has a lot of low-calorie and low-calorie recipes. The ketogenic diet is a very popular low-carb diet. The most important thing is that the cooking does not take more from me, it does not take a long time to stand by the stove. A lot of interesting recipes, I recommend reading.
A:
4