<http://schema.org/description>
"I find it to be a real shame about the confusion around the Web as to what the term \"sandbox\" means.  Google, of course, would not admit to it and I do not blame them.  But there are so many different"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/archives/001963.html>