A uniformed policeman with a dog.
There is a man with a dog.
A policeman is a type of man.
exists s1 x1 x2.(a_topic(x1) & with(x1,x2) & n_dog(x2) & n_policeman(x1) & a_uniformed(s1) & Theme(s1,x1))
exists p1 x1 x2 x3.((x1 = x2) & with(x2,x3) & n_dog(x3) & n_man(x2))