Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An unfunny joke

CH Elster is simply out of his mind. His book of prescriptive rules on pronunciation are idiosyncratic, inconsistent, and apallingly ill-informed when it comes to regional American dialects, the development of the English language, the effect of other languages upon upon American English. One reads this book pop-eyed, unbelieving that anyone, no matter his degrees, could pull off a patent stunt like this. He combines marketing savvy, a mass of chutzpah, and an ego larger than this planet to perpetrate a fraud upon those insecure about their pronunciation. He should be ashamed of himself. So should his publisher.