<http://schema.org/topics>
"Apps and Software,Gadgets,Google Glass,Google Glass,Health &amp; Fitness,medicine,Mobile,Newsy,Rafael Grossman,surgery,Tech,tedx,Uncategorized"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2013/06/27/google-glass-in-operating-room/>