A construction worker working by painting a subway.
A worker is painting an old subway car.
He might not be painting the car itself, and it might not be old.
exists e2 e1 x1 x2 x3 x4.(a_topic(x1) & by(e1,e2) & Theme(e2,x4) & Actor(e2,x3) & v_paint(e2) & n_subway(x4) & Actor(e1,x3) & v_work(e1) & (x1 = x3) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_paint(e1) & n_car(x2) & of(x2,x3) & n_subway(x3) & a_old(s1) & Theme(s1,x2) & n_worker(x1))