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

Q: I play Hand and Foot every other week and the four of us love using these. You get 13 cards and it is very handy to have.

A: Positive
****
Q: I just returned from a month-long trip to Vietnam and Cambodia, and I found this book extremely useful for Cambodia. Not so much for hotel listings, etc., but for no-nonsense background information on Angkor, Phnomh Penh, and Siem Reap. The Vietnam portion was helpful as well, but I relied more on the Lonely Planet and Rough Guide Vietnam editions for that country. I would definitely recommend this book to someone traveling to Cambodia over the Lonely Planet edition, which is *really* outdated.

A: Positive
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Q: this charger does not have enough power to charge my Powerbook G4 while it is running. it will show the charger indicator back and forth from battery power to charging.But when I charge while it is off, it works perfect.I had requested a replacement once and the result was still the same.

A:
Negative
****