A brown dog digging a hole.
The dog is digging.
If the dog is digging a hole it can be said more generally to be digging.
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_dig(e1) & n_hole(x3) & (x1 = x2) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))
exists e1 x1.(n_dog(x1) & Actor(e1,x1) & v_dig(e1))