A dog jumps over a hurdle in the grass.
A champion dogs jumps a hurdle in the grass.
Just because  A dog jumps over a hurdle in the grass doesn't mean doesn't mean it is a champion.
exists e1 x1 x2 x3.(n_grass(x3) & over(e1,x2) & in(x2,x3) & n_hurdle(x2) & Actor(e1,x1) & v_jump(e1) & n_dog(x1))
exists x1 x4.(n_grass(x4) & all x2.(n_hurdle(x2) -> exists e1 x3.(Theme(e1,x3) & Actor(e1,x1) & v_dog(e1) & in(x3,x4) & for(x3,x2) & n_jump(x3))) & n_champion(x1))