<http://schema.org/target>
"android-app://com.guardian/http/www.theguardian.com/global/the-northerner/gallery/2013/jan/24/birds-dogs"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.theguardian.com/global/the-northerner/gallery/2013/jan/24/birds-dogs?picture=402920997>