A skateboarder is airborne above his inverted board.
A skateboarder does tricks.
A skateboarder is airborne above his inverted board implies doing a trick
exists s1 s2 x1 x2.(above(s1,x2) & n_board(x2) & a_inverted(s2) & Theme(s2,x2) & of(x2,x1) & n_male(x1) & Theme(s1,x1) & a_airborne(s1) & n_skateboarder(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_trick(x2) & n_skateboarder(x1))