<http://schema.org/alternativeHeadline>
"Watch: Giancarlo Stanton's walkoff grand slam wins it for Marlins"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/mlb/strike-zone/2014/04/18/video-giancarlo-stanton-walkoff-grand-slam-home-run-marlins-mariners>