<http://schema.org/alternativeHeadline>
"Classified ad site Gumtree releases Android app for UK users and ad posting feature for iOS"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2012/12/21/classified-ad-site-gumtree-releases-android-app-for-uk-users/>