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

Ex Input:
I bought this mixer for my husband off his wish list. He was very excited and loves it!!!!!

Ex Output:
Positive


Ex Input:
This corkscrew is poorly made, consisting of low-grade stampings and flimsy plastic molded parts assembled with tinned rivets. It feels like it's going to come apart in your hand, and it requires considerable care to use it safely and effectively. It's outrageously overpriced, too. An unfortunate product offering from the company that brought us the legendary original Screwpull, perhaps the handiest corkscrew ever.I did manage to pull a cork with it, though - which is why it gets even two stars.

Ex Output:
Negative


Ex Input:
_Heroes of Civilization_ is Cottler and Jaffe's attempt to give brief biographical sketches of some of the most important scientists of the last few centuries. Their stories are of course somewhat dated now, but they still capture the thrill and charm of scientific discovery. PAsteur and Robert Koch are among those profiled. Appropriate for children.

Ex Output:

Positive