<http://schema.org/topics>
"Android,android tablets,features,Gadgets,gallery,Google,iPad,Mobile,Nexus 10,reviews,tablets,Tech,Uncategorized"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2012/11/04/nexus-10-review/?WT.mc_id=en_google>