two of the girls are smiling
Two girls are happy.
Girls smile when they are happy
exists e1 x1 x2.(n_girl(x2) & Actor(e1,x1) & v_smile(e1) & of(x1,x2) & n_thing(x1) & card_eq_2(x1))
exists s1 x1.(Theme(s1,x1) & a_happy(s1) & n_girl(x1) & card_eq_2(x1))