three ghostbuster impersonators
Three people are spongebob impersonators.
The ghostbuster impersonators are not impersonating spongebob.
exists x1 x2.(n_impersonator(x1) & of(x1,x2) & n_ghostbuster(x2) & card_eq_3(x1) & a_topic(x1))
exists p1 x1.(exists s1 x2.((x1 = x2) & n_impersonator(x2) & a_spongebob(s1) & Theme(s1,x2)) & n_people(x1) & card_eq_3(x1))