A waterfall cascades into a shallow pool.
There is a pool with a waterfall.
It is clear that there is a pool.
exists e1 s1 x1 x2.(into(e1,x2) & n_pool(x2) & a_shallow(s1) & Theme(s1,x2) & Actor(e1,x1) & v_cascade(e1) & n_waterfall(x1))
exists p1 x1 x2 x3.((x1 = x2) & with(x2,x3) & n_waterfall(x3) & n_pool(x2))