A skateboarder practicing a trick on his board.
The skateboarder is moving his body.
In order for the skateboarder to be practicing his trick, he has to be moving his body.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_board(x4) & of(x4,x1) & n_male(x1) & Theme(e1,x3) & Actor(e1,x2) & v_practice(e1) & n_trick(x3) & (x1 = x2) & n_skateboarder(x1))
exists e1 x1 x2.(n_body(x2) & of(x2,x1) & n_male(x1) & n_skateboarder(x1) & Theme(e1,x2) & Actor(e1,x1) & v_move(e1))