A crowd of people.
There is a lot of people in an audience.
A lot of people can form a crowd without being an audience for an event.
exists x1 x2.(a_topic(x1) & of(x1,x2) & n_people(x2) & n_crowd(x1))
exists p1 x1 x2 x3 x4.((x1 = x2) & of(x2,x3) & in(x3,x4) & n_audience(x4) & n_people(x3) & n_lot(x2))