A man in white shirt is making a speech.
A man makes a speech in front of a huge audience.
Just because a man is making a speech it does not have to be in front of a huge audience.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_make(e1) & n_speech(x3) & in(x1,x2) & n_shirt(x2) & a_white(s1) & Theme(s1,x2) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & in(x2,x3) & of(x3,x4) & n_audience(x4) & a_huge(s1) & Theme(s1,x4) & n_front(x3) & n_speech(x2) & n_man(x1))