<http://schema.org/topics>
"bluetooth,Dev &amp; Design,Health &amp; Fitness,Gadgets,Health &amp; Fitness,Lifestyle,Uncategorized"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2012/08/29/fitness-gadgets-will-sync-to-bluetooth-enabled-devices-says-new-standards/>