4d1292ac__1_6_Embedded_content___HTML_5__Default_implied_ARIA_semantic
[Language feature] section element [Restrictions] Role must be either region, document, application, contentinfo (ARIA restricts usage of this role to one per page), main (ARIA restricts usage of this role to one per page), search, alert, dialog, alertdialog, status, or log [Default implied ARIA semantic] 
region role
3.2.5.1.6 Embedded content — HTML 5
Default implied ARIA semantic