A dog running with something in its mouth
A dog is returning an object to its owner.
There is no mention of an owner so there is no indication that the dog is giving anything that may be in its mouth to its owner.
exists e1 x1 x2 x3 x4.(a_topic(x1) & with(e1,x3) & in(x3,x4) & n_mouth(x4) & of(x4,x1) & n_thing(x1) & n_thing(x3) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1))
exists e1 x1 x2 x3.(to(e1,x3) & n_owner(x3) & of(x3,x1) & n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_return(e1) & n_object(x2) & n_dog(x1))