ai以下の階層

aiを読む	4ai	6ai	7ai	8ai	9ai	alt	analog	announce	bboard
bind	bmw	cypherpunks	dsl	dupes	flame	flame	general	general	general
iadfw	isdn	jobs	journal	language	news-report	rec	sun-managers	support	support
technical	test	test	ua	unix