Person on swing
the person on swing with baby
Just because on swing does not mean it is with baby.
exists x1 x2.(a_topic(x1) & on(x1,x2) & n_swing(x2) & n_person(x1))
exists x1 x2 x3.(n_person(x1) & a_topic(x1) & with(x1,x3) & n_baby(x3) & on(x1,x2) & n_swing(x2))