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

Answer: Negative

Question: There's not much learning either. Sheri is incredibly condescending when she mimicks pregnant women. This video could also really use some visual aids besides Sheri holding up a poor illustration, writing lists (that she doesn't finish) on a whiteboard and the worst...her on the ground, legs spread in high-waisted khakis demonstrating childbirth.

Answer: Negative

Question: Thank God that Charles Shultz was alive before the "politically correct" ambassadors of the world decided that we have to celebrate commercialism rather than Christ at Christmas. This is a delightful collection of winter and holiday vignettes that culminate in a wonderful Christmas celebration that has become a classic like Miracle on 34th Stree and It's a Wonderful Life. Parents should watch this with their whole families as it has appeal for all generations.

Answer:
Positive