A black dog runs through the water.
The dog is running.
Runs and running are the same word in different tenses.
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 e1 x1.(n_dog(x1) & Actor(e1,x1) & v_run(e1))