Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The best Harry Potter book yet

After reading this book i certainly belive that this book is J. K. Rowling best work yet. Harry Potter has matured and the spells are more intestifying which makes the book alot more intersting to read. while i was reading it i was picturing the scenes and tried to captivate in my mind what the author was trying to prove.The main idea of this story is Sirius Black escaping from prison and looking for Harry Potter. He just wants to warn him that Voldemort and Peter Pettigrew are after him and they are going to kill him. Then Harry finds out that his dad, Peter, Sir Black, and Professor Lupin were all best friends but turned on each other. Sir Black tries to explain that it was a misunderstanding.In results to the story, Sir Black was innocent and Harry found out that he was his godfather the whole time they were after him. As a result of Harry and Ron saving Sir Black from execution, Harry received a Firebolt and Ron received an owl from Sir Black.