A dog with its mouth opened.
A cat sleeping outside.
There can be either a cat or a dog
exists e1 x1 x2.(Actor(e1,x1) & v_open(e1) & with(x1,x2) & n_mouth(x2) & of(x2,x1) & n_thing(x1) & n_dog(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_sleep(e1) & n_outside(x3) & (x1 = x2) & n_cat(x1))