<http://schema.org/description>
"It is almost unheard of to build a new web site and not launch with a basic XML Sitemap for better search visibility.But most experienced SEOs know that it is not really needed for all sites, especial"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-sitemaps-not-required-14508.html>