<http://schema.org/alternativeHeadline>
"2015 NFL free agents: Devin McCourty best available safety"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/nfl/2015/02/05/2015-nfl-free-agents-safeties-devin-mccourty-tashaun-gipson>