Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This is the worst book I have ever used in my enitire college career.

This book was awful. Concepts are confusing, examples are lacking, and most of the homework problems do not represent the material taught in the revelant chapter.This book is terrible in getting across concepts and procedures relating to a variety of problems. One or two examples didn't help me work 20 hw problems, and on top of this the solutions aren't in the back of the book. you have to go on their website to get any supplementary material (which sucks just as bad). It will take forever just to get started on the homework problems because you will have to figure out how it even related to what was read in the chapter.