A group of people, big and small, in a public place.
People are at a state fair.
Just because a group of people are in a public place doesn't mean it is a state fair.
exists s1 s2 s3 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x5) & n_place(x5) & a_public(s3) & Theme(s3,x5) & Theme(s2,x4) & a_small(s2) & (x1 = x4) & Theme(s1,x3) & a_big(s1) & (x1 = x3) & of(x1,x2) & n_people(x2) & n_group(x1))
exists p1 x1.(exists x2 x3.(at(x1,x2) & n_fair(x2) & of(x2,x3) & n_state(x3)) & n_people(x1))