<http://schema.org/description>
"Typically, SEO concepts are very logical.  You want your pages to be easy to read, you want your title tags descriptive (bookmarks, etc), you want to make sure users and bots can discover your pages a"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-mobile-page-speed-17260.html>