A large crowd gathers for a night in the city.
A large crowd in a city.
A large crowd gathers for a night in the city  is  a rephrasing A large crowd in a city.
exists s1 x1 x2 x3 x4.(n_city(x4) & a_topic(x1) & for(x1,x3) & in(x3,x4) & n_night(x3) & n_gather(x1) & of(x1,x2) & n_crowd(x2) & a_large(s1) & Theme(s1,x1))
exists s1 x1 x2.(a_topic(x1) & in(x1,x2) & n_city(x2) & n_crowd(x1) & a_large(s1) & Theme(s1,x1))