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

Ex Input:
When I first heard Ra's "From Zero" I was in awe. A band that used cool effects, Egyptian scales, and was moderately heavy--the perfect mix for me. Then, Duality came out.Duality demonstrates a lack of creativity that was once there in Ra. I wouldn't say they evolved, I'd say they devoled. They still use effects, but rarely and they don't have as big of an impact. On top of that they hardly sound Egyption on the album. As for this album, Ra sounds more like other bands, but they are still distinct. I just wish they went in a different direction.I do want to say that their are some really awesome songs like Fallen Angels, Undertaken, and Taken. The other tracks are bad either, it's just that I expected a whole lot more.

Ex Output:
Negative


Ex Input:
The title of this video mentions Argentine Tango. Unfortunately, what is being taught on this tape is not authentic Argentine Tango. Not even close. It's ballroom tango. There is a huge difference: in music, style, steps, posture, etc... Don't be fooled by ballroom instructors trying to teach Argentine Tango. The only authentic instruction available on the market comes from authentic Argentine instructors from Buenos Aires.

Ex Output:
Negative


Ex Input:
Larry's work for the Muse label in the late 80s and early 90s found him exploring the rich catalog of jazz standards that he probably grew up playing. Surrounding himself with the best musicians around, Larry sounds relaxed, focused, and totally in control. Listen to Larry's take on "My Funny Valentine" and tell me it doesn't stand right up there with Chet Baker's or Miles'. A very fine album that you'll enjoy again and again.

Ex Output:

Positive