<http://schema.org/target>
"android-app://com.guardian/http/www.theguardian.com/travel/gallery/2011/mar/01/been-there-photo-competition"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.theguardian.com/travel/gallery/2011/mar/01/been-there-photo-competition?picture=372047909>