Two dogs run through the grass.
Two dogs are sleeping.
Dogs cannot being running and sleeping at the same time.
exists e1 x1 x2.(n_grass(x2) & through(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_sleep(e1) & n_dog(x1) & card_eq_2(x1))