A person is swinging on a circular swing at dusk.
a young boy runs
a person can be a young boy
exists e1 s1 x1 x2 x3.(at(e1,x3) & n_dusk(x3) & on(e1,x2) & n_swing(x2) & a_circular(s1) & Theme(s1,x2) & Actor(e1,x1) & v_swing(e1) & n_person(x1))
exists s1 x1 x2.(a_topic(x1) & n_run(x1) & of(x1,x2) & n_boy(x2) & a_young(s1) & Theme(s1,x1))