<http://schema.org/keywords>
"2014 nfl combine 2014 nfl draft aaron donald charles leno jake matthews james stone justin britt NFL Combine nfl combine 2014 nfl draft 2014 travis swanson weston richburg xavier su'a-filo"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/nfl/audibles/2014/02/20/2014-nfl-combine-toughest-opponents>