A nude woman submerges herself in a natural pool.
The lady skinny dips at the natural springs.
A pool may be formed by something other than springs.
exists e1 s1 s2 x1 x2.(in(e1,x2) & n_pool(x2) & a_natural(s2) & Theme(s2,x2) & Theme(e1,x2) & Actor(e1,x1) & v_submerge(e1) & n_female(x2) & n_woman(x1) & a_nude(s1) & Theme(s1,x1))
exists s1 x1 x2 x3 x4.(n_spring(x4) & a_natural(s1) & Theme(s1,x4) & n_dip(x1) & of(x1,x3) & n_skinny(x3) & of(x1,x2) & n_lady(x2) & a_topic(x1) & at(x1,x4))