instruction:
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
question:
I used this program for my science class. My students loved it! They learned some interesting facts, saw damage from earthquakes we talked about in class and never once did I hear that it was boring! Can't beat that!
answer:
Positive


question:
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.
answer:
Negative


question:
So I've had this product since July 2011, and it is now in the trash. The seams do not hold up and 2 have released, creating giant 'bubbles' in the mattress rendering it unusable. I paid nearly $50 for this back then, and only used it 3 or 4 times. Very disappointed in the poor quality of this item.
answer:

Negative