Two girls with chocolate mouths
the girl drank white milk
There can't be two girls if there is only one girl.
exists x1 x2 x3.(a_topic(x1) & with(x1,x2) & n_mouth(x2) & of(x2,x3) & n_chocolate(x3) & n_girl(x1) & card_eq_2(x1))
exists s1 x1 x2 x3.(n_milk(x1) & a_white(s1) & Theme(s1,x1) & of(x1,x3) & n_drank(x3) & of(x1,x2) & n_girl(x2) & a_topic(x1))