Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Ugh!

I can't remember the last time I failed to finish a book. Even with the worst of plotlines and/or writing styles I usually stick it out until the end. I closed this book after 50 pages and am not going to try again. The narration suffers from too many speakers and no way to identify them. Is the rebelious priest having an affair with the wife of a wealthy art patron? Or was that the journalist speaking? Who was looking for stolen church artifacts in the restaurant district? The book had some wonderfully written passages - but these don't count for much if the author refuses to let you know WHO IS SPEAKING!!!! I love a book that challenges your intellect, but this book was ridiculously difficult - if you make your readers work that hard, you're going to lose a lot of them.