_:vb50824443 . _:vb50824443 _:vb50824321 . _:vb50824443 . _:vb50824443 "https://www.w3.org/WAI/IG/" . _:vb50824443 . _:vb50824443 "2024-01-05" . _:vb50824443 . _:vb50824443 . _:vb50824443 "WAI Interest Group" . _:vb50824443 . _:vb50824443 "2001-06-18" . _:vb50824443 _:vb50824444 . _:vb50824443 _:vb50824375 . _:vb50824443 .