A man is standing on a ladder painting bricks
A man is working professionally as a painter.
Just because a man is standing on a ladder painting bricks does not indicate that he is working professionally as a painter
exists e1 x1 x2 x3 x4.(Time(e1,x4) & n_brick(x4) & on(e1,x2) & n_painting(x2) & of(x2,x3) & n_ladder(x3) & Actor(e1,x1) & v_stand(e1) & n_man(x1))
exists e1 s1 x1 x2.(a_professionally(s1) & Manner(e1,s1) & as(e1,x2) & n_painter(x2) & Actor(e1,x1) & v_work(e1) & n_man(x1))