Dogs fight in grass over toy.
The cats are jumping out of the window.
Dogs are not cats.  Fighting is not the same as jumping.  Grass and window are not the same thing.
exists e1 x1 x2 x3 x4.(in(e1,x3) & over(x3,x4) & n_toy(x4) & n_grass(x3) & Theme(e1,x2) & Actor(e1,x1) & v_fight(e1) & n_thing(x2) & n_dog(x1))
exists e1 x1 x2.(n_window(x2) & n_cat(x1) & of(e1,x2) & r_out(e1) & Actor(e1,x1) & v_jump(e1))