<http://schema.org/description>
"If you visit Google.com today, you will see a Google Doodle (logo) of an Apple tree.  If you wait a couple seconds, you will notice that one of the apple's falls off the tree.  Yes, it is Issac Newton"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/archives/021448.html>