<http://schema.org/alternativeHeadline>
"Wikipedia\u2019s testing a new sign-up page to entice would-be Wikipedians"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/media/2012/10/05/wikipedias-testing-a-new-sign-up-page-to-entice-would-be-wikipedians/>