A woman is making a speech.
A woman is talking about politics.
We can't tell that the woman is talking about politics in her speech.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & n_speech(x2) & n_woman(x1))
exists e1 x1 x2.(about(e1,x2) & n_politics(x2) & Actor(e1,x1) & v_talk(e1) & n_woman(x1))