Man giving a speech possibly at a seminar.
A man is holding a seminar for creative writing.
We have no idea if the seminar is for creative writing, it could be a seminar for anything.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & a_possibly(s1) & Manner(e1,s1) & at(e1,x4) & n_seminar(x4) & Theme(e1,x3) & Actor(e1,x2) & v_give(e1) & n_speech(x3) & (x1 = x2) & n_man(x1))
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & for(x2,x3) & n_writing(x3) & a_creative(s1) & Theme(s1,x3) & n_seminar(x2) & n_man(x1))