A young girl in a pink dress stands on a sidewalk.
A girl waits by the sidewalk.
The girl is on the sidewalk, not by it, and it is not necessarily true that she waits.
exists e1 s1 s2 x1 x2 x3.(on(e1,x3) & n_sidewalk(x3) & Actor(e1,x1) & v_stand(e1) & in(x1,x2) & n_dress(x2) & a_pink(s2) & Theme(s2,x2) & n_girl(x1) & a_young(s1) & Theme(s1,x1))
exists x1 x2 x3.(n_sidewalk(x3) & a_topic(x1) & by(x1,x3) & n_wait(x1) & of(x1,x2) & n_girl(x2))