sentence: An individual wearing face covering drags an inner tube type device along the snow, surrounded by other people doing the same thing. sentence:  The individual walks towards another individual wearing a red jacket. sentence:  The individual hands the rein for the device to the person in the red jacket and sits on the device. sentence:  The person in the red jacket pulls the device downhill and the first individual rides down the slope. sentence:  The first individual dismounts and resumes pulling the device. sentence:  The individual pulls the device along some sort of covered walkway with a moving floor.