Two young girls are talking to each other.
Two boys talk about a girl.
Two girls are not two boys.
exists e1 s1 x1.(all x2.(n_other(x2) -> to(e1,x2)) & Actor(e1,x1) & v_talk(e1) & n_girl(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1 x2.(about(e1,x2) & n_girl(x2) & Actor(e1,x1) & v_talk(e1) & n_boy(x1) & card_eq_2(x1))