Four men in orange vests work on a road at night.
Four men in blue vests are directing traffic.
you cant wear a vest that's simultaneously blue and orange.
exists e1 x1 x2 x3 x4 x5.(at(e1,x5) & n_night(x5) & on(e1,x4) & n_road(x4) & Actor(e1,x1) & v_work(e1) & in(x1,x2) & n_vest(x2) & of(x2,x3) & n_orange(x3) & n_man(x1) & card_eq_4(x1))
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_direct(e1) & n_traffic(x3) & in(x1,x2) & n_vest(x2) & a_blue(s1) & Theme(s1,x2) & n_man(x1) & card_eq_4(x1))