Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Waste of Money

From the beginning to the end this book if full of errors.For a beginner who wants to learn German grammar, I would strongly recommend another book by Hansen Dollenmayer called, "Neue Horizonte". This book is being taught at some colleges in California and is to my opinion and all of those in my class and the german speaking people I know, one of the best and complete books in learning German language.The price might be high but well worth it.