A cleaning robot was rolling through the nearly deserted parking lot, sweeping up leaves and mud.

There had been a small cleaning robot in the lean-to outside.

I curse the man who invented the cleaning robot.

Nobody knows what a cleaning robot will decide is garbage.

You'd want the self-destruct to leave something that the cleaning robot would sweep up.

She was tucked into an area smaller than an overnight bag, a space that normally housed a cleaning robot.

Then he instructed two of the cleaning robots to come to his room, and open its door.

His relief was swallowed by surprise as a cleaning robot dodged around him.

Functionless cleaning robots would have to wait their turn in the line of the many anomalies to be dealt with.

The partners allowed the hotel's cleaning robots into the Dark Side only once every six months or so.