Two black dogs play in the waves at the beach.
Cats are napping.
One sentence references dogs and the other references cats.
exists e1 s1 x1 x2 x3.(n_beach(x3) & n_wave(x2) & at(e1,x3) & in(e1,x2) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & a_black(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_nap(e1) & n_cat(x1))