<http://schema.org/topics>
"bill bratton,Bill de Blasio,chokehold,eric garner,new york city,NYPD,police brutality,police officers,Politics,Uncategorized,U.S.,World,Video,Videos"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2014/07/19/nyc-mayor-investigation-man-died-chokehold/>