Two men are looking at each other.
Two men lock eyes.
Men can look without having their eyes lock.
exists e1 x1.(all x2.(n_other(x2) -> at(e1,x2)) & Actor(e1,x1) & v_look(e1) & n_man(x1) & card_eq_2(x1))
exists s1 s2 x1 x2.(n_eye(x1) & a_.(s2) & Theme(s2,x1) & a_lock(s1) & Theme(s1,x1) & of(x1,x2) & n_man(x2) & card_eq_2(x1) & a_topic(x1))