<http://schema.org/topics>
"3D TV,Business,DVR,Mobile,mobile devices,mobile phone use,news,Nielsen Media Research,smartphone market share,State of Media,statistics"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2011/01/06/smartphones-still-outrank-tablets-e-readers-in-nielsen-survey-stats/>