A boy wearing mirror sunglasses.
The boy is wearing his favorite sunglasses.
Sunglass preference is specific to individuals and doesn't imply it is his favorite.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_sunglass(x3) & of(x3,x4) & n_mirror(x4) & (x1 = x2) & n_boy(x1))
exists e1 s1 x1 x2.(n_sunglass(x2) & a_favorite(s1) & Theme(s1,x2) & of(x2,x1) & n_male(x1) & n_boy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1))