Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Major Disappointment

The book started out okay then it started to get really interesting, but at the end it just stopped. No closure, no solving all the characters in the book. It seems like John Grisham got tired of writing the book and just ended it where he stopped! That's the only explanation I can think of. I felt like I wasted my time reading it. John what happened?