Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A good book, a must read for those who like to think! : )

Although many people seem to have bad opinions of this book, I myself found it very enjoyable. This book, along with providing an entertaining story about the life of a young soldier, provokes readers to think about their morals, politics, and beliefs. Heinlein's views may not all be right or agreeable, but they do raise interesting points. If you like SF and enjoy books that don't just cater to the stereotypes, get this one. AWS