A man with a camera.
A person has a camera.
A man is a person and he has a camera.
exists x1 x2.(a_topic(x1) & with(x1,x2) & n_camera(x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_camera(x2) & n_person(x1))