Two dogs play in the grass.
Two dogs are taking a nap.
You need to be asleep to be taking a nap and cannot play while you are sleeping.
exists x1 x2 x3.(n_grass(x3) & a_topic(x1) & in(x1,x3) & n_play(x1) & of(x1,x2) & n_dog(x2) & card_eq_2(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_nap(x2) & n_dog(x1) & card_eq_2(x1))