Skateboarder flying over ramp outside.
Soccer player flying over ramp outside.
Skateboarder and soccer player can not be flying over a ramp at the same time.
exists e1 x1 x2 x3.(ne_nam_skateboarder(x1) & over(e1,x2) & n_outside(x2) & of(x2,x3) & n_ramp(x3) & Actor(e1,x1) & v_fly(e1))
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & over(e1,x4) & n_outside(x4) & of(x4,x5) & n_ramp(x5) & Actor(e1,x3) & v_fly(e1) & (x1 = x3) & n_player(x1) & (x1 = x2) & ne_nam_soccer(x2))