a black dog plays in the water.
There's a black dog in a pool of water.
"A black dog plays in the water" is the same as "a black dog in water".
exists s1 x1 x2 x3.(n_water(x3) & a_topic(x1) & in(x1,x3) & n_play(x1) & of(x1,x2) & n_dog(x2) & a_black(s1) & Theme(s1,x1))
exists p1 x1 x2 x3.(in(p1,x2) & of(x2,x3) & n_water(x3) & n_pool(x2) & exists s1 x4.((x1 = x4) & n_dog(x4) & a_black(s1) & Theme(s1,x4)))