Someone bent down cleaning poles.
Someone is cleaning poles
Both subjects are cleaning
exists x1 x2 x3.(a_topic(x1) & down(x1,x2) & n_pole(x2) & of(x2,x3) & n_cleaning(x3) & n_bent(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_clean(e1) & n_pole(x2) & n_person(x1))