Instruct: Classify Amazon reviews into positive or negative sentiment
Query: WASTE OF MONEY!

This was by far the worst Study guide I have ever used. It only gives some clues to the answers. Even if that is not too bad, it wastes pages on explaining how to solve the equations on mathematica (which is a waste is your teacher doesn't require mathematica) instead of actually further explaining ANY of the material.Seriously, words cannot describe how MUCH I hate this book. Note to the author: If you didn't feel like giving us answers to the problems, then don't kill trees in selling this worthless book.