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

Ex Input:
An exellent study of the German Airforce from the fall of Sevastopol in the Crimea to its failure at Stalingrad. Very well written, with a clear analysis of the events. Well worth the money and it belongs in every major collection on World War II's Eastern Front.

Ex Output:
Positive


Ex Input:
I was extremely lucky to have found this, because it is a) an import & b) limited edition...especially lucky to find just thrown in the kylie section of a Pennsylvania Borders! Ok, here it is track-by-track:1. Chocolate [Radio Edit]:While this cuts the album version of the song by one minute and two seconds, it's better. Her vocals are improved, & more of an arrangement is used. 10/102. City Games: THis extreme rarity is fabulous. Very R&B; pop. 10/103. Chocolate [Tom Middleton Cosmos Remix]: A club dub. Cool when you have so much energy in you that you have to dance it out, but not for a regular listen. 7/104. Chocolate [EMO Mix]: Woderful. A good R&B; dance mix of the song. 9/105. Love @ First Sight [Live]: A live version of the Fever hit. I usually love live sounds, but this when isn't quite up to par with the original. 8/10I still have yet to figure out how to access the video. (...)Overall great package, great mixes, great rarities.

Ex Output:
Positive


Ex Input:
Interesting and informative book! This book is helpful for all diabetics--even those who are very knowledgeable about diabetes. There's always something more to learn about this disease. The diet is very restrictive and challenging to follow. But, a person's health does win out ultimately.

Ex Output:

Positive