Two young girls hug.
The girls are happy.
Hugging usually means you're happy
exists s1 s2 x1 x2.(n_hug(x1) & a_.(s2) & Theme(s2,x1) & of(x1,x2) & n_girl(x2) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1) & a_topic(x1))
exists s1 x1.(n_girl(x1) & Theme(s1,x1) & a_happy(s1))