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

Ex Input:
The sizing of this costume was fairly accurate but it very cheaply made. After only a few wears, the mask and belt both broke. I wouldn't recommend this costume.

Ex Output:
Negative


Ex Input:
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.

Ex Output:
Positive


Ex Input:
This is NOT Koss at its best. I recently bought its newest model and trashed this one. Don't bother buying it, a good price-bad deal! Buy the new one!Recommended Manufactors: Koss Aiwa Sony

Ex Output:

Negative