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

[Q]: Altough the content on childbirth is descriptive (at times a bit too descriptive), the commentator/director Sheri Bayles is one of the most annoying, irritating, wanna-be-actresses that my husband and I have ever seen. Her approach to teaching by injecting humor is painful, and it took all of our strength to not plug our ears and cover our eyes to watch this woman. If you can handle obnoxious, loud and nerdy instructors, then you may enjoy this DVD. The 5 couples she works with in the instruction look bored and confused.
[A]: Negative

[Q]: If you're willing to trade a little style for some substance and save some money in the bargain, this is a very recommendable device. My Apple PowerBook power supply died in what is apparently typical fashion - sparking, crumbling wire where it meets the brick - and none of the Apple stores or CompUSAs in Atlanta had any in stock (which is curious in itself). I resorted to Amazon and decided to try this one out and I've been pretty happy with it. It seems sturdily constructed, and the breakaway cable is a surprisingly handy way to save on tangles. I do miss the plug-in charging light, but that's about it.
[A]: Positive

[Q]: I bought my first Xerox DocuMate 510 in mid-2008. It works so well that when I wanted to replace an aging scanner for another office machine, I simply bought it again. I am running Win XP (paid extra not to get VISTA when I bought new machines) and find this scanner, combined with PaperPort 11, works beautifully. I do not use the "single touch" software that comes with it, having long since learned to use PaperPort for all scanning, so I cannot comment on its functionality. The machine itself does everything it saws, without error.
[A]:
Positive