A woman rapels through barren treetops.
The trees are tall.
The trees with the barren tops may not be tall.
exists e1 s1 x1 x2.(through(e1,x2) & n_treetop(x2) & a_barren(s1) & Theme(s1,x2) & Actor(e1,x1) & v_rapel(e1) & n_woman(x1))
exists s1 x1.(n_tree(x1) & Theme(s1,x1) & a_tall(s1))