<http://schema.org/description>
"About a month ago, Bing confirmed they use the meta keywords tag as part of their many ranking signals. As we said then, Yahoo did also.  Most SEOs I know, at least in the publishing business, don't b"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/meta-keywords-revival-poll-14087.html>