$1!=x!KH!3S!D+!T23BD!S, (B/ s - $1!\s!N('<3s ($1!T+!4I!<D (B: s $1!\D!G;(B, s, 1984)
$1!04!BX!4}!R]!CU!MB(B:$1'b^(B212-213s
$1!Tk!BX!4}!R]!CU!MB(B:$1'b^(B213-219s