A dark-skinned security officer smiles.
A man is smiling at the camera.
A security officer could be a man, and smiles means the same as smiling.
exists e1 s1 x1 x2.(Actor(e1,x1) & v_smile(e1) & n_officer(x1) & of(x1,x2) & n_security(x2) & a_dark-skinned(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_camera(x2) & at(e1,x2) & Actor(e1,x1) & v_smile(e1) & n_man(x1))