A worker is working in an elevator.
A man is doing a job.
A man could be a worker. Doing his job implies he is working.
exists e1 x1 x2.(in(e1,x2) & n_elevator(x2) & Actor(e1,x1) & v_work(e1) & n_worker(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_job(x2) & n_man(x1))