Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The greatest American novel

I don't need to tell you what this book is about: everyone is familiar with it. I started reading it for the first time at age 25, fully expecting it to be the greatest novel I've ever read. I was not disappointed. I've never laughed so much with one book. The dialects, the events, the people: they're all so priceless. A masterpiece!