Men wearing hard hats and safety vests are working.
Men are on the job site.
Either the men are working or at the job site.
exists e2 e1 s1 x1 x2 x3 x4 x5.(Actor(e2,x1) & v_work(e2) & subset_of(x4,x1) & n_vest(x4) & of(x4,x5) & n_safety(x5) & subset_of(x2,x1) & n_hat(x2) & a_hard(s1) & Theme(s1,x2) & Actor(e1,x2) & v_wear(e1) & of(x2,x3) & n_man(x3))
exists p1 x1 x2 x3.(n_site(x2) & of(x2,x3) & n_job(x3) & on(x1,x2) & n_man(x1))