input:  Now, answer this question: Title: Don't waste your time or money. It doesn't work. Review: I wouldn't even give the Ceiva frame a star. The concept is amazing. And because of this, I purchased 3 of them to give as gifts for the holiday. None of the 3 worked. None of the replacements worked. Ceiva thought it extremely unusual to have such a situation happen. Yet if you read through the Amazon reviews, you'll see that it is extremely common. The product has lots of bugs...avoid it. Avoid the frustration and time. Argh! Is this product review negative?
A:
output: Yes

input:  Now, answer this question: Title: Performance ok, durability not good. Review: Have had these headphones for about 2 years, but used very rarely, maybe about 10-15 times total. Main issue is that these are big and take up too much space to put in my briefcase. Performance is ok, though sometimes there's a crackling sound just touching the control where you turn on/off noise canceling. Durability is a big problem...during my last trip, the cover over the ear cup foams literally went to pieces. I had to pick the pieces out of of my hair and clothing in the middle of the flight. Is this product review negative?
A:
output: Yes

input:  Now, answer this question: Title: Nothing but problems Review: This is the second 600 I have had, and now this one is kaput and I'm shopping for a new one, I don't want to deal with it anymore. LIke many others said, it won't turn on and you have to take the backpack off, my backlight works very randomly, when you turn the volume up or down it freezes and you have to disconnect the backpack, now it won't even play, you push play and it just restarts the device! Two thumbs down! Is this product review negative?
A:
output: