A waterfall cascades into a shallow pool.
The waterfall is cold.
pool doesn't always mean  cold.
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 s1 x1.(n_waterfall(x1) & Theme(s1,x1) & a_cold(s1))