Many people looking at an old locomotive.
Many people are robbing an old locomotive
looking and robbing are different actions
exists e1 s1 x1 x2.(at(e1,x2) & n_locomotive(x2) & a_old(s1) & Theme(s1,x2) & Actor(e1,x1) & v_look(e1) & n_people(x1) & n_quantity(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_rob(e1) & n_locomotive(x2) & a_old(s1) & Theme(s1,x2) & n_people(x1) & n_quantity(x1))