People in the city.
It is raining in the city.
It is not raining in all cities with people.
exists x1 x2.(n_city(x2) & a_topic(x1) & in(x1,x2) & n_people(x1))
exists e1 x1 x2.(n_city(x2) & n_thing(x1) & in(e1,x2) & Actor(e1,x1) & v_rain(e1))