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

[EX Q]: If you are of a certain age and experience, you already know about Dharma Bums.If you are of another certain age and experience, this book goes against everything taught by Saint Ronald Reagan, and so you should avoid it.If you are young, give this book a try. Better yet, instead of buying it, go to the local library to read it. Unless the people I described in my second paragraph have taken over and there are only Approved Books in the library...if there are libraries at all. Libraries cost money, and that means (shudder) taxes.For everyone else: this is Kerouak's best work.
[EX A]: Positive

[EX Q]: I am a huge fan of science fiction and fantasy, and have been reading these books for 20 years. I picked up the Foundation books because Asimov was supposed to be so great, and I really enjoyed his short stories. This book - all of the books in this series - is so amazingly boring it could be used to replace Thorazine. The concept was solid, but the characters made me not care at all. I kept hoping they would die simply so there would be something interesting happening. If you must read it, check it out from the library and save your money. Unless of course you're a chronic insomniac; then, by all means, buy this book.
[EX A]: Negative

[EX Q]: Tre Hardson (of the Pharcyde), is without a doubt one talented individual...this album is incredible and should be owned by everyone interested in hip-hop and quality music...The only artist I can compare him to is K-os from Vancouver, BC...flows, lyrics, some singing...this is dope...and I listen to artists like Killah Priest, Billy Woods, Mr. Lif and Reef the lost Cauze. Peace
[EX A]:
Positive