Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best Of 4!!!

Out of all of the Harry Potter books, this was my favorite book. I found the 4th book dark and sorta evil. but the 3rd was just right for me. J.K. Rowling had a truly great idea for a series of books and I am glad that she has published them. THANK YOU J.K. ROWLING!!