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

[EX Q]: I Have had trouble with HP and XP since upgrading. Although they say it is xp compatable with driver, it is not. Will cause system to lock up and when I called HP they blamed XP. Bought a Epson and first time install without a hitch. Hope this helps and God bless you!
[EX A]: Negative

[EX Q]: I bought this first alert CO alarm for my home in Wisconsin.When I started to read the instructions I found that this product is not UL list! How can a safety item like this not be UL listed.I did some research and found out first alert changed testing labs to save a few bucks and do not use the most well known UL. What's up with that...So I returned this CO and purchased the Kidde KN-COB-DP-H Plug-In Carbon Monoxide Alarm. The Kidde unit cost less too, so I saved a few dollars! Always pays to READ THE FINE PRINT.
[EX A]: Negative

[EX Q]: Sweet Dream Baby is an amazing novel, and its power grows as time passes. I read the novel when it first came out, and it's still with me. The music, the sight of a swimming hole, even a dusty road can make Travis and Delia appear for me again. What I wanted to know when I put the book down was, does Travis have a chance at a decent life? And what was up with Delia? More and more, I want to find out, because I can't let these characters go. I hope there will be a sequel.
[EX A]:
Positive