Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Guzziology: As essential as food. Really.

Own a Guzzi? Thinking about becoming a Goose owner? Do you enjoy lugging enormous books around? This is your tome then. Dave Richardson has created something that no other bike make can claim to have: he has written a bible for a particular brand of bike that is truly useful and affordable. Want to know what the valve clearance is on your V11? Don't know what valve clearance is? Well, Dave will tell you the answers to both questions. A T5? Yes indeed, even the T5 is covered in this book. Oil leaks? Covered. Winning lottery numbers? Perhaps.Buy it. Now.