A man is standing on a ladder painting bricks
A man is painting.
in a both sentence standing and painting both are different.
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 p1 x1.(exists x2.((x1 = x2) & n_painting(x2)) & n_man(x1))