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

[EX Q]: We had to buy a new lunchbox for our son after 2 months (a different brand, machine-washable) because this one is way too hard to clean. I have turned it completely inside out, scrubbed between all the cracks, and still food is stuck in the seams andthreads. It is very durable, but we can't get rid of the smell or stains with a reasonable amount of effort.
[EX A]: Negative

[EX Q]: This book is not for everyone. It is extremely scary and disturbing. At the same time, it is a fascinating look at the police work and prosecution that brought the murderous Manson Family to justice. The book is hard to put down; the in depth discussion on presenting a criminal case in court and developing evidence to support the case is outstanding. The main complaint is that the book is a few hundred pages too long. The author seems a little too self-promoting, but then again he did get a prosecution on one of the biggest murders in history.
[EX A]: Positive

[EX Q]: This disc proves that there's much more to the Campbell/Webb association than the 4 or 5 hits from the late 60s we all know and love. 'The Moon's A Harsh Mistress', 'Highwayman', 'Lightning in a Bottle' and 'If These Walls Could Speak' are particularly fine Webb songs and they're given superb renditions by Campbell. The chemistry has always been right between these two and I hope it's not the last we hear of them together.
[EX A]:
Positive