Two male workers are observing another smiling male worker while he does his job.
Two old men stare at a younger man.
Two male workers are observing another smiling male worker while he does his job does not mean they are old
exists e3 e1 e2 p1 s1 x1 x2 x3 x4 x5.(exists e4 x2.(Theme(e4,x5) & Actor(e4,x2) & v_do(e4) & n_male(x2)) & n_job(x5) & of(x5,x2) & n_male(x2) & while(e3,p1) & Theme(e3,x3) & Actor(e3,x1) & v_observe(e3) & n_worker(x3) & of(x3,x4) & n_male(x4) & Actor(e2,x3) & v_smile(e2) & -(x3 = x1) & n_worker(x1) & n_worker(x1) & of(x1,x2) & n_male(x2) & Actor(e1,x1) & v_smile(e1) & a_male(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 s1 s2 x1 x2.(at(e1,x2) & n_man(x2) & r_more(s2) & a_younger(s2) & Theme(s2,x2) & Actor(e1,x1) & v_stare(e1) & n_man(x1) & a_old(s1) & Theme(s1,x1) & card_eq_2(x1))