<http://schema.org/keywords>
"demarcus ware demarcus ware broncos demarcus ware denver demarcus ware denver broncos demarcus ware injury demarcus ware otas demarcus ware back injury"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/nfl/2016/06/01/denver-broncos-demarcus-ware-misses-otas-back-injury>