Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A unique effort

If you're like me, a Civil War buff who enjoys abstruse puns, this book is great fun. Rosecrans is Guildenstern, Gettysburg is Essoville, Louisiana is Cloviston, etc.Now if you're not a Civil War buff, much of the detail of this story will be obscure. The story as a story, apart from being about the Civil War, is passably interesting, but not fascinating.