Two dogs wrestle in the grass.
Two dogs are sitting on a rug before a fire.
The dogs who wrestle in the grass cannot also be indoors, sitting on a rug
exists e1 x1 x2.(n_grass(x2) & in(e1,x2) & Actor(e1,x1) & v_wrestle(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(before(e1,x3) & n_fire(x3) & on(e1,x2) & n_rug(x2) & Actor(e1,x1) & v_sit(e1) & n_dog(x1) & card_eq_2(x1))