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

[Q]: this product is awesome. it hide all your secrets. I would recommend this product to all women and men. I will buy product again.
[A]: Positive


[Q]: The title of this video mentions Argentine Tango. Unfortunately, what is being taught on this tape is not authentic Argentine Tango. Not even close. It's ballroom tango. There is a huge difference: in music, style, steps, posture, etc... Don't be fooled by ballroom instructors trying to teach Argentine Tango. The only authentic instruction available on the market comes from authentic Argentine instructors from Buenos Aires.
[A]: Negative


[Q]: I looked far and wide for a medium to light brown eyeliner pencil and this one turned out to be perfect. If you have blonde hair, you can look a little trashy wearing black eyeliner, so this is a wonderful find.
[A]:
Positive