Two women having a conversation.
The women are having a conversation about their children.
Not all conversations between two women are about children.
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_have(e1) & n_conversation(x3) & (x1 = x2) & n_woman(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_child(x3) & of(x3,x1) & n_thing(x1) & n_woman(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & about(x2,x3) & n_conversation(x2))