A wakeboarder is suspended in midair over water.
A snowboarder is suspended in midair.
Person who is in water wakeboarder can not be out in the snow snowboarder at the same time.
exists e1 x1 x2 x3.(over(e1,x3) & n_water(x3) & in(e1,x2) & n_midair(x2) & Theme(e1,x1) & v_suspend(e1) & n_wakeboarder(x1))
exists e1 x1 x2.(in(e1,x2) & n_midair(x2) & Theme(e1,x1) & v_suspend(e1) & n_snowboarder(x1))