<http://schema.org/description>
"A WebmasterWorld thread asks a question that is so obvious and basic that I've never thought of it or even seen it asked before in the forums.  The question is, can Google AdSense publishers also sell"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-adsense-direct-ad-deals-14721.html>