Teenagers walk down a tree-lined city street.
Teenagers are in the city.
walk down a tree-lined city street shows that are in the city.
exists e1 s1 x1 x2 x3.(down(e1,x2) & n_street(x2) & of(x2,x3) & n_city(x3) & a_tree-lined(s1) & Theme(s1,x2) & Actor(e1,x1) & v_walk(e1) & n_teenager(x1))
exists p1 x1 x2.(n_city(x2) & in(x1,x2) & n_teenager(x1))