<http://schema.org/description>
"Google has admitted to test a new Googlebot-Mobile type specific to iPhone.One Webmaster saw the special Googlebot-Mobile show up in his log files and posted a thread about it at Google Webmaster Help"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/iphone-google-bot-12999.html>