a large crowd of people.
A mass assembling of individuals.
Assembling of individuals is the same as a crowd
exists s1 x1 x2.(a_topic(x1) & of(x1,x2) & n_people(x2) & n_crowd(x1) & a_large(s1) & Theme(s1,x1))
exists s1 x1 x2.(a_topic(x1) & of(x1,x2) & n_individual(x2) & n_assembling(x1) & a_mass(s1) & Theme(s1,x1))