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

"Under the Apple Tree" by Lilian Harry is a really great book. The book starts out in 1941 Portmounts with the Taylor family being bombed out of there home. Family moves to April Grove, where they become invovled with the war effort. This is a great book, as with other by Ms. Harry the reader feels that they are in the action and the reader is able to feel the emotions of the characters. This book does use characters from other books by Ms. Harry, but does not required the reader to know these character whole story. "Under the Apple Tree" is a great book