A dark-skinned man is wearing a police outfit.
A white man is wearing a fireman uniform.
The man cannot be white and dark-skinned at the same time. They are either wearing a police outfit, or a fireman uniform.
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_outfit(x2) & of(x2,x3) & n_police(x3) & n_man(x1) & a_dark-skinned(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_uniform(x2) & of(x2,x3) & n_fireman(x3) & n_man(x1) & a_white(s1) & Theme(s1,x1))