A woman cleaning up a park.
A person is performing janitorial duties.
It is implied that cleaning up is performing janitorial duties.
exists e1 s1 x1 x2 x3.(a_topic(x1) & a_up(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_clean(e1) & n_park(x3) & (x1 = x2) & n_woman(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_duty(x2) & a_janitorial(s1) & Theme(s1,x2) & n_person(x1))