Spectators in sunglasses at an event.
The people are not wearing eye protection.
A person cannot have on sunglasses while simultaneously not wearing eye protection.
exists x1 x2 x3.(a_topic(x1) & in(x1,x2) & at(x2,x3) & n_event(x3) & n_sunglass(x2) & n_spectator(x1))
exists x1.(n_people(x1) & -exists e1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_protection(x2) & of(x2,x3) & n_eye(x3)))