2 worker men with white helmets and orange shirts.
Two men work without shirts.
without shirts and shirts are not the same.
exists s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & with(x1,x3) & subset_of(x5,x3) & n_shirt(x5) & of(x5,x6) & n_orange(x6) & subset_of(x4,x3) & n_helmet(x4) & a_white(s1) & Theme(s1,x4) & n_man(x1) & of(x1,x2) & n_worker(x2) & n_date(x1) & a_date_day_02(x1) & a_date_day_02(x1))
exists e1 x1.(-exists x2.(with(e1,x2) & n_shirt(x2)) & Actor(e1,x1) & v_work(e1) & n_man(x1) & card_eq_2(x1))