In this task, You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.

Q: The Roomba 980 performs as stated. Excellent pick up and battery life. The WiFi connectivity is handy for as needed cleaning between scheduled times. We are very pleased with the unit.

A: positive
****
Q: My dad has varicose vains. And me, as a woman, i don’t want to get as many as him. So now when sitting for most of the day or standing for long periods of time or dancing for hours or traveling... i put these on! I have a dozen of ‘em now

A: positive
****
Q: These things are pretty useless. It'll tell you if it's in your home, but nothing more specific than that. Duh. I drove home. I know my keys are here somewhere. It'll let you sound a chime on the device, but it's so quiet that it's hard to hear. If the keys are between the couch cushions, forget it.

A:
negative
****