A man standing on some scaffolding is trying to position a ladder.
The man fell off the ladder, so now he's on the scaffolding trying to put it in a better spot.
Standing on some scaffolding trying to position a ladder does not mean the man fell off the ladder trying to put it in a better spot.
exists e1 e2 p1 x1 x2 x3.(Topic(e2,p1) & Actor(e2,x1) & v_try(e2) & exists e3 x4.(Theme(e3,x4) & Actor(e3,x1) & v_position(e3) & n_ladder(x4)) & on(e1,x3) & n_scaffolding(x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_man(x1))
exists e1 p1 s1 x1 x2 x3.(n_thing(x2) & n_scaffolding(x3) & n_male(x2) & n_ladder(x2) & n_man(x1) & exists p2.(r_now(p2) & exists e2 p3 x4.(on(x2,x3) & Topic(e2,p3) & Actor(e2,x4) & v_try(e2) & exists e3 s2 x5.(in(e3,x5) & n_spot(x5) & r_more(s2) & a_good(s2) & Theme(s2,x5) & Theme(e3,x2) & Actor(e3,x4) & v_put(e3)) & (x3 = x4))) & so(e1,p1) & a_off(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_fall(e1))