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

Ex Input:
My little boy is just getting interested in these blocks. They are too cute! He's learning to manipulate the block in his hands. The little things inside the blocks are adorable. Some spin, some twirl, some rock. A definate upgrade from the standard wooden blocks.

Ex Output:
Positive


Ex Input:
The book was boring and to far fetched to be entertaining. The characters were not believable and left me with wanting to many unanswered questions. The author took to many liberties with facts. All in all, I just didn't care for the book, skipped thru pages to end it so I could go on to more enjoyable reading. Amazon offers so many options and choices that I'm bound to pick a lemon once in awhile. I always read the brief description of the book before I buy but in this book that wasn't enough.

Ex Output:
Negative


Ex Input:
I listened to the first track, Rockin' In Rhythm five or six times before going onto the second track; and experienced the delight of discovering something truly good and remarkable from two artists, about whom I thought I knew everything good and remarkable. Back in the 1970's I collected Ella songbooks on vinyl (Gershwin, Porter, Rogers & Hart), but never got around to the Ellington collection. How fortunate that I inadvertently saved this little gem for a rainy day. Listening to it is like discovering Ellington and Ella anew. Except with the added appreciation of a fan. I would never tire of Rockin' In Rhythm, so reliable a source of joy it is...my soul smiles for the privilege to witness this collaboration.

Ex Output:

Positive