A dog in a competition jumps over a hurdle.
A dog is participating in a competition.
Competition isn't practicing.
exists e1 x1 x2 x3.(over(e1,x3) & n_hurdle(x3) & Actor(e1,x1) & v_jump(e1) & in(x1,x2) & n_competition(x2) & n_dog(x1))
exists e1 x1 x2.(in(e1,x2) & n_competition(x2) & Actor(e1,x1) & v_participate(e1) & n_dog(x1))