Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

[Q]: I was installing these chips in a G4 Sawtooth macintosh computer and the chips did not work. I had kernel panics that eventually left the operating system unusable. The hard drive had to be reformatted and the OS re-installed. A great headache and PITA. I need to return these memory modules, how would I do that.best regards,vilppu
[A]: Negative

[Q]: My husband and I are expecting our first baby any day now. We opted to get a childbirth video versus attending a class. After doing some research and getting reccomendations from friends, I decided to purchase this video. While the information on the DVD is helpful and each segment is clear and easy to understand, the instructor presented it in such a way that made extremely painful to watch.The instructor continuously makes annoying jokes, mocks pregnant women and their partners, using the most unfunny and unflattering impersonations imaginable. Watching this woman's attempt stand-up routine was so uncomfortable that we often found ourselves fast forwarding through a lot of it. Please believe that neither me or my husband laughed during this DVD. Not once.I wish we had just gone to childbirth class.
[A]: Negative

[Q]: This book should occupy a prominent place in your collection. Yes its ok to own more than one book on sartorial correctness. Take this book for its strenghts (i.e.,the correct way to buy fine clothes) and don't worry about its drawbacks. This is an excellent source for learning about the theory and practice of dressing like a proper man. Much has been made about the outdated addresses of some of the stores in the second half of the book. Well my response is..get over it. Fine mens stores change addresses, its a fact of life. The important thing is the name and description of the store. With that said, sit back and enjoy the text and pictures and take responsibility for being a well heeled gentleman...if you dare.
[A]:
Positive