<http://schema.org/keywords>
"vontaze burfict vontaze burfict bengals vontaze burfict concussion vontaze burfict return vontaze burfict injury vontaze burfict returns practice vontaze burfict week 6"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/nfl/2014/10/08/cincinnati-bengals-linebacker-vontaze-burfict-returns-practice-concussion>