A very crowded city street.
The city is big
The town might not be big; small towns can be crowded, too.
exists s1 x1 x2.(a_topic(x1) & n_street(x1) & of(x1,x2) & n_city(x2) & a_crowded(s1) & Theme(s1,x1) & r_very(x1))
exists s1 x1.(n_city(x1) & Theme(s1,x1) & a_big(s1))