Men in orange vests and hard hats.
People wearing protective construction clothing.
Men are people. Orange vests and hard hats are protective construction clothing.
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & n_hat(x5) & a_hard(s1) & Theme(s1,x5) & n_vest(x4) & subset_of(x5,x2) & subset_of(x4,x2) & of(x2,x3) & n_orange(x3) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_clothing(x3) & of(x3,x4) & n_construction(x4) & a_protective(s1) & Theme(s1,x3) & (x1 = x2) & n_people(x1))