Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This is a great book

There's a Boy in the Girls' Bathroom by Louis Sachar is a book about a boy named Bradley Chalkers who goes through some of life's most difficult changes. I think it is an excellent book about some of life's hardest and most difficult changes that occur in real life. I think the setting is very realalistic and believable because, the author did a nice job of making it sound like a real middle school would be like. The author also did a nice job of making the characters sound realistic. The author made Bradley Chalkers sound like a realistic 12 year old bully. The book is a little hard to understand in the beginning, but after a few paragraphs it all comes together. This is a great book to learn how to deal with some of life's hardest decisions and changes. I would recommend this book to everyone to help them to get through life, or most of it.