People walk down a narrow street between tall buildings.
People are walking in a city.
People walking on a narrow street may not be in a city.
exists e1 s1 s2 x1 x2 x3.(down(e1,x2) & between(x2,x3) & n_building(x3) & a_tall(s2) & Theme(s2,x3) & n_street(x2) & a_narrow(s1) & Theme(s1,x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))
exists e1 x1 x2.(in(e1,x2) & n_city(x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))