<http://schema.org/description>
"Yahoo said they will be testing Bing powered search results this month.  Since then, I haven't really seen anyone say they see it.  How will you know if you are in a test group that is seeing the Bing"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/archives/022577.html>