two dogs play together.
The dogs are sleeping.
The dogs would be unable to play together if they are sleeping.
exists e1 s1 x1.(a_together(s1) & Manner(e1,s1) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 x1.(n_dog(x1) & Actor(e1,x1) & v_sleep(e1))