two construction workers wearing orange vests
Two workers are highly visable
Orange vests are highly visible.
exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & n_vest(x3) & of(x3,x4) & n_orange(x4) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_2(x1))
exists s1 x1.(r_highly(s1) & Theme(s1,x1) & a_visable(s1) & n_worker(x1) & card_eq_2(x1))