<http://schema.org/alternativeHeadline>
"Twitter\u2019s Mobile team to hold WWDC Open House event for developers on June 11th"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/twitter/2012/06/01/twitters-mobile-team-to-hold-wwdc-open-house-event-for-developers-on-june-11th/>