Instruct: Classify Amazon reviews into positive or negative sentiment
Query: this wont make you grow taller

Guys, there is no doubt that this book will improve your physical fitness, but i dont think this book will make you grow taller. If you all go to Robert Grand website, you will realise that he says that he has grown 6 inches after trying those exercises that he drew in the book. The question is: where is the evidence of his 6 inch growth. Why doesnt he show any photos of him which proves he grew 6 inches. His so called secrets are not even secrets. If you go to the gym you will realise that most of his drawings in the book are already their. Plz dont buy this book. You are wastin your dreams of growth.