Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fun way to burn time

Rubik's Twist comes in handy at times of boredom; I keep it on my desk and make a new shape when I need a break from homework. It's fun to make shapes yourself, but you can also look online for twisting algorithms to create other objects that people have made. They range from trivial to complex, and the difficult part is maintaining the same orientation throughout the twisting process. The only disadvantage to this particular version of Rubik's Twist is durability - I wish that the original and more durable "Rubik's Snake" was still available.