A black dog with a red collar retrieving a stick from deep water.
The dog's owner is nearby.
Just because a dog is retrieving a stick not necessarily is the dog's owner nearby.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5.(a_topic(x1) & with(x1,x2) & from(e1,x5) & n_water(x5) & a_deep(s3) & Theme(s3,x5) & Theme(e1,x4) & Actor(e1,x3) & v_retrieve(e1) & n_stick(x4) & (x2 = x3) & n_collar(x2) & a_red(s2) & Theme(s2,x2) & n_dog(x1) & a_black(s1) & Theme(s1,x1))
exists s1 x1 x2.(n_owner(x2) & of(x2,x1) & n_dog(x1) & Theme(s1,x2) & a_nearby(s1))