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

[Q]: This DVD is one of my all time favorite musical DVDs. Miss Jackson proves why she is the highest paid singer in the industry. With a combination of costume changes, great choreography, Janet's greatest hits, and a sold out crowd at Madison Square Garden, the DVD makes for an excellent night of entertainment. I only regret that I was not able to see the concert in person here in my home town due to a cancelation of the concert;however, the DVD is definately a suitable substitute. I highly recommend this DVD to any fans of Janet, lovers of music, and owners of quality DVDs.
[A]: Positive


[Q]: I ordered Alter Ego for men but got Alter Ego for woman. I followed the procedure given on the the web to complain and ask how to do the return, but did not get any answer.
[A]: Negative


[Q]: Before I begin, let me just say that I absolutely love her Dark series. Those books are great. This one had potential, but it just fell flat. Her characters simply weren't developed enough this time for me to relate to them. This effort was decent but not at all up to her usual standards.
[A]:
Negative