Two men in safety vests walk down the road.
Two men in work apparel were walking outside.
Safety vests are work apparel.
exists e1 x1 x2 x3 x4.(n_road(x4) & down(e1,x4) & Actor(e1,x1) & v_walk(e1) & in(x1,x2) & n_vest(x2) & of(x2,x3) & n_safety(x3) & n_man(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(a_outside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_walk(e1) & in(x1,x2) & n_apparel(x2) & of(x2,x3) & n_work(x3) & n_man(x1) & card_eq_2(x1))