<http://schema.org/description>
"Last month, Google added \"crawl source\" errors reporting to Google Webmaster Tools.  Webmasters were happy with this tool, it gave them actionable items to work on.But now, it seems a bug is preventin"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/archives/018638.html>