Instruct: Classify a given review into positive or negative sentiment.
Query: Carl Sagan is no writer.

This book is not a very good one. Carl Sagan does a great job in putting science into science fiction, but leads you up to a terrible climax. If this was the only thing wrong with it then I would have given this book a higher rating, but Sagan enraged me by making all religious people out to be freaks and slack-jawwed yockles. This really insulted me. I feel Mr. Sagan ruined a perfectly boring book by his attacks at religion. If this book was written when THE ORIGINS OF SPECIS came out the Christians would have attacked CONTACT!!