input:  Now, answer this question: Title: The reviews here have it exactly right Review: I've had my Observer about 10 years. I love this watch. I love how it looks. I've gauged the altimeter in a small plane (where I could see the plane's instruments) and hiking the Grand Canyon. It works. The temperature is correct and I've always assume the air pressure is too. I've only replaced the battery twice (maybe 3 times) in those year. I've had it down to 80 feet diving, no problem. The compass is highly accurate and easily re-calibrated when needed.But the band breaks about every 18 months. Nothing you do can stop it. And I, at least, have to get a jeweler to replace it because I can't manage the tight fit on my own. And the band is $40 retail, though you can find for $20 online.So some people here say it's worth the hassle and some say not. I think it is, but it IS a hassle. And don't be fooled by seeing Observer bands with spiffy metal decoration. They are the same material underneath and still break. Is this product review negative?
A:
output: No

input:  Now, answer this question: Title: Definitely for Dummies Review: For those who know nothing at all about hockey this may be a useful introduction, and that is apparently its purpose. It is rather shallow. Want to know what a "left wing lock" is? Or what the penalties are? Or what the basic theories of offense and defense are? Or even what the rules are? You can learn a very little about them from this book. But you'll learn more just by listening to the television announcers. Those familiar with the fine "For Dummies" series will expect more and may well be disappointed. Is this product review negative?
A:
output: Yes

input:  Now, answer this question: Title: Worst book i've ever read Review: I was forced to read this book as a summer assignment in my high school this year. It was not a pleasant experience, it took me so long to finish the book because it was so boring and my mind kept drifting off to something else. Is this product review negative?
A:
output: