rolling on a surface is a kind of moving on a surface
rolling is simple_acrobatic_motion. wheel_rolling is not rolling. rolling_over is surface_constrained_rotation. rolling_over is rolling_over. rolling is not movement_along_surface. rolling is movement_along_surface. rolling is motion_solid_against_solid. wheel_rolling is rolling. rolling_over is not surface_constrained_rotation. rolling is not simple_acrobatic_motion.