<http://schema.org/description>
"Last week, Google confirmed the new AdSense favicons would go live and over the weekend they did.In fact, many publishers are noticing the new favicons showing up in all the various text ad formats th"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-adsense-favicons-live-17140.html>