Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Artemis Fowl (1-4)

The author is such a genius in weaving the story. It is not Harry Potter, it is better. More compact, more personal, and more challenging. I tried to predict every turn of the story and failed almost all the time.It is harder than Harry Potter to understand the plots and the vocabulary level is much higher. Somehow, I think it is not really for kids in elementary schools, they just cannot get it that much.Amazingly good!