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

Ex Input:
These two short tapes consist of a brief description of 50 years of white-red relations, treaties and conflicts. Because of its brevity, there is little detail presented. The text is interesting and appears to be factually correct. The presentation is relatively unbiased, and is quite interesting. It would make a good audio tape. The extra loud background music and simulated battlefield noise sometimes drowns out the text. The visual portion consists of old photographs, presumably authentic in detail and clips from old grade B movies which are quite far from authentic. These are rerun from 6 to 10 times throughout the presentation and, of course, have no bearing on the text. Except for the extreme brevity and the overwhelming background noise, one can ignore the visual effects and derive a worthwhile understanding of many aspects of the period of the Indian Wars.

Ex Output:
Negative


Ex Input:
Considering how much bad music is out there these days, this was nice to come across. Covers a wide range of topics and moods, musicianship is pretty good. I'd recommend it to just about anyone. My tastes are usually heavier and more progressive - Rush, Dream Theater, Iron Maiden, Queensryche. But I like this disc too.

Ex Output:
Positive


Ex Input:
Here is a terrifying novel by Cornwell. Her knowledge of medicine and forensic science keeps you turning the page. A woman's body is found in the snow in Central Park. There is no question that the killer is one Temple Brooks Goult. Scarpetta discovers that his killings are a pattern with one ending. It is one of her best. By Ruth Thompson author of "The Bluegrass Dream"

Ex Output:

Positive