<http://schema.org/description>
"Duplicate content issues are one of those plaguing issues that SEOs have to deal with often.  Often, Webmasters are unaware they have a duplicate content issue until it is too late.  Yes, by too late "^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/archives/003868.html>