A man is standing on a ladder painting bricks
His friend is holding the base of the ladder.
There might not be anyone holding the ladder, and even if there is it might not be his friend.
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 x1 x2 x3 x4.(n_ladder(x4) & n_base(x3) & n_friend(x2) & of(x2,x1) & n_male(x1) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & of(x3,x4))