A large gathering of people at a park.
Men and women gather in a park.
A large gathering of people does not mean there were men and women both there.
exists s1 x1 x2 x3.(a_topic(x1) & of(x1,x2) & at(x2,x3) & n_park(x3) & n_people(x2) & n_gathering(x1) & a_large(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(in(e1,x4) & n_park(x4) & Actor(e1,x1) & v_gather(e1) & subset_of(x3,x1) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))