<http://schema.org/alternativeHeadline>
"Twitter\u2019s Vine gets vanity URLs: sign-up starts Dec. 20 for verified accounts and Dec. 23 for all others"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/twitter/2013/12/19/twitters-vine-gets-vanity-urls-sign-starts-dec-20-verified-dec-23-others/?_escaped_fragment_=qhBIp>