A white dog retrieves the stick from the lake for her owner.
A dog is returning a stick to the the little girl who threw it.
The stick might have been on the grown and no one may have threw it.
exists e1 s1 x1 x2 x3 x4.(n_owner(x4) & of(x4,x3) & n_female(x3) & n_lake(x3) & n_stick(x2) & Theme(e1,x2) & Actor(e1,x1) & v_retrieve(e1) & from(x2,x3) & for(x3,x4) & n_dog(x1) & a_white(s1) & Theme(s1,x1))
exists e2 e1 s1 x1 x2 x3 x4.(n_thing(x3) & n_girl(x3) & a_little(s1) & Theme(s1,x3) & Theme(e2,x2) & Actor(e2,x1) & v_return(e2) & to(x2,x3) & Theme(e1,x3) & Actor(e1,x4) & v_throw(e1) & (x3 = x4) & n_stick(x2) & n_dog(x1))