Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A great book

This book is about nine-year-old Molly McIntire, who lives on the home front in 1944, during World War Two. Molly and her friends, Linda and Susan, decide to be Hawaiian hula dancers for Halloween. They tease Molly's brother Ricky because he has a crush on Molly's sister's friend. To get back at them, Ricky ruins their Halloween by spraying them with a hose and ruining their costumes and treats. They tell Molly's mother, but they think her punishment is too easy on Ricky. They decide to get back at him, but Molly's mom sees, and has a talk with them. Molly, Linda, and Susan have to do Ricky's laundry as a punishment. Soon Molly and Ricky are friends again, and the "war" between them ends.