A train conductor holding a bag.
A person holding a baseball bat.
A bag and a baseball bat are two different things.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_hold(e1) & n_bag(x4) & (x1 = x3) & n_conductor(x1) & of(x1,x2) & n_train(x2))
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & n_bat(x3) & of(x3,x4) & n_baseball(x4) & (x1 = x2) & n_person(x1))