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

Ex Input:
Well another one of my first dvd purchases...I found this concert very poor...it did nothing for me... the sound quality was poor, The set on stage was quite good but lacked the final sparkle, Janet's performance was glitzy... but sadly something was missing...my advice is puchase Janet's later DVDS...

Ex Output:
Negative

Ex Input:
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.

Ex Output:
Negative

Ex Input:
I bought two sets of these. They're priced at $9.50. But, when they arrived, the price tag still stuck on the item says $2.99. Nice way to hide your "shippign cost" ($6.51) from your customers! This company goes on my "Never Again" list!

Ex Output:
Negative