sentence: There are several people riding bumper cars in at an entertainment center. sentence:  The bumper car drivers wait for a period of time before they begin driving the cars. sentence:  Then they all go in the same direction as they go around a divider, make a U turn and then come back to where they started. sentence:  There are some people watching them with cameras in their hands. sentence:  They drivers continue driving their cars in the same direction where some car follow the other in circles.