A man wearing a black pullover takes a photograph.
A man is naked.
The man cannot be naked and wearing a black pullover at the same time
exists e2 e1 s1 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_take(e2) & n_photograph(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_pullover(x3) & a_black(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists s1 x1.(Theme(s1,x1) & a_naked(s1) & n_man(x1))