A man on a scaffold is reaching for an extended ladder.
He is a window cleaner.
Other people than a window cleaner would use scaffolding or ladders
exists e1 s1 x1 x2 x3.(for(e1,x3) & n_ladder(x3) & a_extended(s1) & Theme(s1,x3) & Actor(e1,x1) & v_reach(e1) & on(x1,x2) & n_scaffold(x2) & n_man(x1))
exists p1 x1.(n_male(x1) & exists x2 x3.((x1 = x2) & n_cleaner(x2) & of(x2,x3) & n_window(x3)))