Instruct: Classify a given review into positive or negative sentiment.
Query: The book was unfocused on its topic.

I bought the book hoping to gain some added insight on how to preserve the game I love, but Joe would meander off on topics comparing The Big Red Machine to the Yankees and letting us know things he thought managers did wrong in last year's post season.50% of the book was a good read, but it wasn't why I bought it. Consequently I was disappointed in what Joe did with such an important topic.