Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Harry Potter 2

In this book is where people start to reveal their deepest secret. Harry in this book changed a bit more. Harry started to noticed girls. He also started to become more responsible of his actions. Harry grows and grows as the story or the series keeps going. In this book Harry didn't change a whole lot, Harry is becoming a teenager just like any other high school student. The second book was great because nobody knew who was realy petrefying everyone at Hogwarts. And then at the end you find out that Riddle was the one who send the creature lose at Hogwarts. So that's pretty cool.