A pedestrian side way in a city.
A wide lane for pedestrians downtown.
The lane could be for many things besides pedestrians. The lane could be anywhere in the city and not necessarily downtown.
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_city(x3) & n_way(x1) & of(x1,x2) & n_side(x2) & a_pedestrian(s1) & Theme(s1,x1))
exists s1 x1 x2 x3.(a_topic(x1) & for(x1,x2) & n_downtown(x2) & of(x2,x3) & n_pedestrian(x3) & n_lane(x1) & a_wide(s1) & Theme(s1,x1))