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

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:
It brought home an old classic - I can watch these guys over and over again.

Ex Output:
Positive


Ex Input:
The world's best performers together. I guess the only one missing was Peter Gabriel, but oh well, he missed it.Extremely recommendable.

Ex Output:

Positive