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

[EX Q]: 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 A]: Negative

[EX Q]: SELLER DOESN'T RESPOND BACK EITHER. WARNING!!! WARNING!!! WARNING!!! DON'T BUY HERE!!!! CHEAP CHINAM JUNK!!! WARNING!!! WARNING!!!!DON'T BUY HERE. CHEAP BOLT ON SET UP......TWISTED OFF AND BROKE THE FIRST TIME. LUCKY IT DIDN'T SMASH A FOOT OR FINGERS. LAWSUIT TIME IF IT DID.WARNING!!!! WARNING!!! WARNING!!!! DON'T BUY HERE. CHEAP CHINA JUNK!!!!!
[EX A]: Negative

[EX Q]: Re-releasing this series with a new illustrator was a terrible idea and, frankly, completely missing the point of the originals. The stories themselves are a collection of sleepover tales and urban legends which, when taken alone, aren't particularly frightening. For those of us who enjoy this series, it was the original illustrations from the twisted mind of Stephen Gammell that made these "Scary Stories" truly scary; without them, the book is laughable. Helquist may be a talented enough artist, but he can't hope to duplicate the underlying terror of Gammell's illustrations.
[EX A]:
Negative