<http://schema.org/target>
"android-app://com.guardian/http/www.theguardian.com/technology/2013/jan/15/facebook-announcement-graph-search-mark-zuckerberg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.theguardian.com/technology/2013/jan/15/facebook-announcement-graph-search-mark-zuckerberg>