People walking through a garden in the middle of a city.
The people are in a zoo.
A garden is not the same as a zoo.
exists e1 x1 x2 x3 x4 x5.(n_middle(x4) & a_topic(x1) & in(e1,x4) & of(x4,x5) & n_city(x5) & through(e1,x3) & n_garden(x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))
exists p1 x1.(n_people(x1) & exists x2.(in(x1,x2) & n_zoo(x2)))