two adults hug each other.
Two women are hugging.
When two adults hug each other, it does not necessarily mean that those two adults are women.
exists x1.(all x2.(n_other(x2) -> exists e1.(Theme(e1,x2) & Actor(e1,x1) & v_hug(e1))) & n_adult(x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_hug(e1) & n_woman(x1) & card_eq_2(x1))