a dog runs through the snow.
a dog is running
Running is the present participle of runs.
exists e1 x1 x2.(n_snow(x2) & through(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1))
exists e1 x1.(Actor(e1,x1) & v_run(e1) & n_dog(x1))