Three workers in fluorescent orange clothing cleaning the subway tracks.
Three men are cleaning subway tracks.
Workers can be men. Men can be in fluorescent orange clothing.
exists e1 s1 x1 x2 x3 x4 x5 x6.(n_track(x5) & of(x5,x6) & n_subway(x6) & a_topic(x1) & in(x1,x2) & Theme(e1,x5) & Actor(e1,x4) & v_clean(e1) & (x2 = x4) & n_clothing(x2) & of(x2,x3) & n_orange(x3) & a_fluorescent(s1) & Theme(s1,x2) & n_worker(x1) & card_eq_3(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_clean(e1) & n_track(x2) & of(x2,x3) & n_subway(x3) & n_man(x1) & card_eq_3(x1))