<http://schema.org/description>
"Yahoo has offered rich ads in search (RAIS) for a while now and since Microsoft has taken over control of search ads, Bing is working on incorporating that feature.  Pamela Parker at Search Engine Lan"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/adcenter-rais-14901.html>