A dog with a reflective harness looks at the camera.
A search dog looks at the camera.
A dog with reflective harness is not necessarily a search dog.
exists e1 s1 x1 x2 x3.(n_camera(x3) & at(e1,x3) & Actor(e1,x1) & v_look(e1) & with(x1,x2) & n_harness(x2) & a_reflective(s1) & Theme(s1,x2) & n_dog(x1))
exists e1 x1 x2 x3.(n_camera(x3) & at(e1,x3) & Actor(e1,x1) & v_look(e1) & n_dog(x1) & of(x1,x2) & n_search(x2))