A girl climbing a rope wall.
A girl practices climbing to perfect her strategy.
Just because a girl is climbing a rope wall doesn't mean that the girl practices climbing to perfect her strategy.  The girl could have been climbing a rope wall for fun or reasons other than practicing to perfect a strategy.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_climb(e1) & n_wall(x3) & of(x3,x4) & n_rope(x4) & (x1 = x2) & n_girl(x1))
exists e1 p1 x1 x2 x3 x4 x5.(a_topic(x1) & Topic(e1,p1) & exists e2.(Theme(e2,x5) & Actor(e2,x3) & v_perfect(e2)) & n_strategy(x5) & of(x5,x1) & n_female(x1) & Actor(e1,x4) & v_climb(e1) & (x1 = x4) & (x1 = x3) & n_practice(x1) & of(x1,x2) & n_girl(x2))