sentence: In the snow, various young men perform snowboard tricks before the camera. sentence:  A man in a blue sweatshirt jumps down a staircase. sentence:  A young man in a black outfit performs a double trick by grinding down one railing and jumping down a staircase. sentence:  A man in a purple sweatshirt grinds down a staircase railing. sentence:  A man in a purple and black striped sweatshirt jumps down a staircase. sentence:  The man in the blue sweatshirt grinds down a railing and lands stylishly on the floor.