Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Seriously?

Popped the first disc into the player, chose the first option, and was very surprised to see the woman doing things only a double-jointed person could do. My impression was this product is intended for inflexible people. However, it requires a great deal of flexibility to perform the tasks. On top of this, the actions are very fast-paced, which led me to feel as if an injury was inevitable. Proper stretching doesn't occur in the blink of an eye. Next...