A woman who is smiling is wearing a unique head ornament.
A woman is smiling
The woman is currently smiling, not just theoretically able to smile under certain conditions.
exists e1 e2 s1 x1 x2 x3 x4.(Theme(e2,x3) & Actor(e2,x1) & v_wear(e2) & n_ornament(x3) & of(x3,x4) & n_head(x4) & a_unique(s1) & Theme(s1,x3) & Actor(e1,x2) & v_smile(e1) & (x1 = x2) & n_woman(x1))
exists e1 x1.(Actor(e1,x1) & v_smile(e1) & n_woman(x1))