A wakeboarder in the ocean is in the middle of a flip.
A wakeboarder is doing a flip.
The flip is in the ocean.
exists p1 x1 x2 x3.(n_middle(x3) & n_ocean(x2) & exists x4.(in(x1,x3) & of(x3,x4) & n_flip(x4)) & in(x1,x2) & n_wakeboarder(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_flip(x2) & n_wakeboarder(x1))