A black dog runs through the water.
The dog is at the lake.
Not all water is a lake.
exists e1 s1 x1 x2.(n_water(x2) & through(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & a_black(s1) & Theme(s1,x1))
exists p1 x1 x2.(n_lake(x2) & n_dog(x1) & at(x1,x2))