Six men shielding their eyes from the sun
The men are not wearing sunglasses.
People who are shielding their eyes from the sun need not be people who are not wearing sunglasses.
exists e1 x1 x2 x3 x4.(n_sun(x4) & a_topic(x1) & from(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_shield(e1) & n_eye(x3) & of(x3,x1) & n_thing(x1) & (x1 = x2) & n_man(x1) & card_eq_6(x1))
exists x1.(n_man(x1) & -exists e1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_sunglass(x2)))