Two men wearing eyeglasses standing together.
The two men know each other.
The two men wearing eyeglasses don't necessarily know each other.
exists e1 e2 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_wear(e2) & a_together(s1) & Manner(e1,s1) & Actor(e1,x4) & v_stand(e1) & (x3 = x4) & n_eyeglass(x3) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
exists x1.(n_man(x1) & card_eq_2(x1) & all x2.(n_other(x2) -> exists e1.(Theme(e1,x2) & Actor(e1,x1) & v_know(e1))))