Given reviews from Amazon, classify those review based on their content into two classes: Negative or 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]: This is being written mostly in protest of the re-print. The stories in these series were always a little dull. But the art, the art was fantastic, and now they've taken it away. I dont have my old copies any more and now the old books are going for outrageous sums. I wanted to get these books for my kids someday--not any more.
[A]: Negative


[Q]: Wow, this is one of the most useless "books" I have ever read. Based on the title, one would expect some sort of insight into a career search. I found this book to be no help at all. It looks like the author lifted a few job ideas from the government job handbook and wrote a bad Clif's Notes for them. If you want guidance, please do not waste your time and money on this drivel. I agree with the previous reviewer.... I feel sorry for anyone that actually paid for this book.
[A]:
Negative