Two girlfriends smiling.
The girls are wearing the same color shirts.
You can not infer they are the same.
exists e1 x1.(Actor(e1,x1) & v_smile(e1) & n_girlfriend(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(n_shirt(x2) & of(x2,x3) & n_color(x3) & a_same(s1) & Theme(s1,x2) & n_girl(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1))