<http://schema.org/description>
"A WebmasterWorld and Google AdSense Help have people noticing a new format for Google AdSense ads.The ads have large blue curved arrows and appear to be showing when viewing AdSense ads on iPads.  Her"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-adsense-blue-arrows-14471.html>