An ethnic man is wearing a headpiece.
The headpiece is a turban.
You can not infer there is a turban.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_headpiece(x2) & n_man(x1) & a_ethnic(s1) & Theme(s1,x1))
exists p1 x1.(n_headpiece(x1) & exists x2.((x1 = x2) & n_turban(x2)))