People search for their seats in a stadium.
People walk through the stadium.
People are in the stadium in both sentences.
exists x1 x2 x3 x4.(a_topic(x1) & for(x1,x3) & in(x3,x4) & n_stadium(x4) & n_seat(x3) & of(x3,x1) & n_thing(x1) & n_search(x1) & of(x1,x2) & n_people(x2))
exists e1 x1 x2.(n_stadium(x2) & through(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))