<http://schema.org/description>
"A couple weeks ago, we reported Google updated their terms of service to disallow AdSense via IFrames.Google has now clarified why they changed their terms to mention IFrames and explained that in som"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/adsense-iframe-13549.html>