<http://schema.org/topics>
"apps,Apps and Software,app store (iOS) ,Microsoft,mobile devices,tablets,Tech,Uncategorized,Windows 8,Windows Store"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2011/12/06/microsoft-reveals-windows-store-in-bid-to-crash-tablet-party/>