<http://schema.org/topics>
"Apps and Software,email,Facebook,Gadgets,Google,Mobile,online presence,online privacy,Social Media,Tech,Travel,Travel &amp; Leisure,Twitter,Uncategorized,U.S.,Work &amp;amp; Play,World"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2013/12/05/google-social-media-bot/>