<http://schema.org/topics>
"app store (iOS) ,Apple,Apps and Software,Mobile,superstorm sandy,Uncategorized"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2012/11/09/apps-charity/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Mashable+%28Mashable%29>