There are two children at home, playing.
There are kids playing with toy cars.
The two children playing may not be playing with toy cars.
exists e1 p1 x1 x2.(for(p1,e1) & Actor(e1,x1) & v_play(e1) & at(p1,x2) & n_home(x2) & exists x3.((x1 = x3) & n_child(x3) & card_eq_2(x3)))
exists p1 x1 e1 x2 x3 x4 x5.((x1 = x2) & with(e1,x4) & n_car(x4) & of(x4,x5) & n_toy(x5) & Actor(e1,x3) & v_play(e1) & (x2 = x3) & n_kid(x2))