<http://schema.org/description>
"A Google Webmaster Help thread has Google stating the obvious, especially after the Penguin update - your links, to count and not hurt you, need to be 100% natural.Google's John Mueller said in a Goog"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-natural-links-15298.html>