<http://schema.org/keywords>
"robert griffin robert griffin III rg3 RGIII robert griffin browns robert griffin iii browns rg3 browns rg3 redskins Washington Redskins Cleveland Browns"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/nfl/2016/04/06/robert-griffin-iii-rg3-chip-shoulder-browns-redskins>