Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good Return on my Order

Amazon is easily the most efficient and reliable way to obtain a product not locally available. I already was familiar with the book I ordered, and so the only relevant comments here would be the condition of the book, which was top-notch and exactly as described, and the service, which was fast and dependable. I highly recommend Amazon and its services. (For people interested in linguistics, psychology, and the history of language, I also highly recommend the book I ordered, "Grooming, Gossip, and the Evolution of Language." It's well-written, well-researched, funny, stimulating, and introduces a reader to the latest and most surprising research in the field.)