Instruct: Classify an Amazon review into positive or negative sentiment.
Query: A real-life Tom Clancy like thriller!

Don't read this book before bedtime. You won't want to put it down! It's an excellent thriller that often reads like a plot from a James Bond movie only everything in this book really happened! Blind Man's Bluff is a a throughly detailed page turner that takes the reader behind the scenes of some of the most secret and hair-raising sub missions of the cold war. If you thought most American subs merely trolled the Atlantic searching for Soviet subs, you'll be throughly surprised at the risks taken by U.S. subs to gain some of the most extensive intelligence of the past fifty-years. Read it, and you'll gain a new respect for the dedication and sheer bravey of those who serve in the silent service.