(PICS-1.1
 "http://www.gcf.org/v2.5"
 by "John Doe"
 labels on "1994.11.05T08:15-0500"
 until "1995.12.31T23:59-0000"
 for "http://w3.org/PICS/Overview.html"
 ratings (suds 0.5 density 0 Color/hue 1)
 for "http://w3.org/PICS/Underview.html"
 by "Jane Doe"
 generic true
 r (subject 2 density 1 color/hue 1)
 "http://huu.haa.com/"
 l by "foo"
 extension (mandatory "http://foo.com/bar" 1 2)
 r (a 1 b 0))

