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

Input: Consider Input: This book it simply one of the best science fiction stories ever written. It should be on the "must read" list for any sci-fi fan.

Output: Positive


Input: Consider Input: My costume was a small and didn't fit my 5 year old wayyyy to tight and it dd t come with the belt!!!

Output: Negative


Input: Consider Input: This album is worth the wait. Great vocals accompanied by rocking fuzzed out riffs. Sounds like the perfect cross between Unida and Kyuss. The cd hasn't left my player yet. The only problem I have (which means 4 stars instead of 5) is that its fairly short. It really only has 7 tracks that total under 30 minutes. That aside, any fan of this genre of music will love it. The cd flat out rocks all the way through.


Output: Positive