sentence: A collection of skateboards lined up on a street in the upward position on their wheels and upside down on the platform. sentence:  A skateboarder wearing a white helmet skates by followed by another skateboarder while the camera pans a group of skateboarder spectators watching from the street curb. sentence:  A group of skateboarders perform tricks and maneuvers up and down the street. sentence:  A view of a vehicle loaded with skateboards and skateboarding equipment. sentence:  Another view of the skateboards lined up on the street in the upright position. sentence:  Spectators watch from the street curb while a group of skateboarders take turns skating down hill and making a sharp spin stop at a designated spot.