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

[Q]: I used this program for my science class. My students loved it! They learned some interesting facts, saw damage from earthquakes we talked about in class and never once did I hear that it was boring! Can't beat that!
[A]: Positive

[Q]: 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.
[A]: Negative

[Q]: It's good price and works as expect. After a month of use it still going strong. The plug is sung. It keeps the headphone attached firmly.
[A]:
Positive