<http://schema.org/alternativeHeadline>
"Novak Djokovic edges Juan Martin del Potro in historic Wimbledon semifinal"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/tennis/beyond-baseline/2013/07/05/novak-djokovic-juan-martin-del-potro-wimbledon-live-analysis>