<http://schema.org/description>
"As you know, Google announced their Hummingbird algorithm about a month after it launched, claiming no one noticed and no one should notice.  But we do think we did notice but no one can confirm that "^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-hummingbird-seo-17493.html>